You kinda scare me when you suggest that Mohammed was demanding submission "to him" and not Allah. .
Mohammadism and Islam are interchangeable terms. The warlord created this new quasi-religion placing himself as the sole authority in order to prop up his power by investing his actions with Godly sanctioning.
It is hardly a stretch to say he was demanding submission to him when that is exactly what he was doing.
You seem to be caught up on the word "religion", the assumption being that Islam operates just like Christianity or Judaism. It doesn't and it never did.
It does in America. We provided a context for it's practice without all the baggage. Not that "our brand" of Muslims are gonna win at defanging Islam in general. But from an American prospective, it CAN BE just like Christianity or Judaism if the ties to the outside are severed.
If you read a good biography of Mohammed, you can learn a great deal about what shaped the religion, the upheavals and conflicts of the time. What Mohammed saw, in the Arab culture, his own culture was an excess of extravagance, pride and honor motivated violence that was moving people away from God. Widows and orphans suffered impoverishment, the poor were ignored and wealth was concentrated and wasted in the hands of a few. That's an oversimplification, but it was what led him to try to change his culture and bring his people closer to God within the context of values of the times.
The Quran is full of verses about war and conflict, but those verses are often stripped of their context, much like some will do with the Bible. Unlike the OT however it is also full of rules as to when it's permissible to conduct war, how to treat those captured etc.
It is also full of verses on peace, justness and compassion. That often gets ignored, both by its detractors and its extremists.
What I don't understand is this attitude that insists Islam cannot ever work within a culture of western ideals, freedoms and rights. Followers of the Bible, a book full of bloody vengeful intolerant actions and commands have done so. They place an emphasis on the peaceful and compassionate aspects, and view the violence in a metsphorical fashion rather than literal. The Quran contains the same potential. So have many Muslims in western countries, including many in Europe. It isn't the rarity people think it is, it's often that you only ever here of Muslims behaving badly and Europe is under intense pressure with the migrant and refugee situation.
It isn't that Islam cannot coexist with western values, it does, every day.
The most glaring antithesis to your flowery prose occurred the day these followers of Mohammed flew jets into various building killing innocents. That type of behavior has not ceased.
So you tar an entire religion with the actions of extremists.
Only those who honor the words of the Q'ran....
The following are direct quotes from the Quran and the Hadith:
Quran 4:89: "They (infidels) desire that you should disbelieve as they have disbelieved, so that you might be (all) alike; therefore take not from among them friends until they fly (their homes) in Allah's way; but if they turn back, then seize them and kill them wherever you find them, and take not from among them a friend or a helper."
Quran 8:12: "Instill terror into the hearts of the unbelievers;"
Quran 2:191: "... kill the disbelievers wherever we find them
Quran 22:19-22: "… for them (the unbelievers) garments of fire shall be cut and there shall be poured over their heads boiling water whereby whatever is in their bowels and skin shall be dissolved and they will be punished with hooked iron rods."
Quran 8:12: "Your Lord inspired the angels with the message: 'I will terrorize the unbelievers. Therefore smite them on their necks and every joint and incapacitate them. Strike off their heads and cut off each of their fingers and toes.'"
Qur'an:8:12 "I shall terrorize the infidels. So wound their bodies and incapacitate them because they oppose Allah and His Apostle."
Quran 8:7: "Allah wished to confirm the truth by His words: 'Wipe the infidels out to the last.'"
Quran 8:59: "The infidels should not think that they can get away from us. Prepare against them whatever arms and weaponry you can muster so that you may terrorize them. They are your enemy and Allah's enemy."
Quran 8:60: "Prepare against them whatever arms and cavalry you can muster that you may strike terror in the enemies of Allah, and others besides them not known to you."
Quran 9.29" "Fight those who do not believe in Allah, nor in the latter day, nor do they prohibit what Allah and His Apostle have prohibited, nor follow the religion of truth, out of those who have been given the Book, until they pay the tax in acknowledgment of superiority and they are in a state of subjection."
Quran 47:4: "Strike off the heads of the disbelievers" and, after making a "wide slaughter among them, carefully tie up the remaining captives."
Hadith Sahih Muslim (41:6985): "Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: 'The last hour would not come unless the Muslims will fight against the Jews and the Muslims would kill them until the Jews would hide themselves behind a stone or a tree and a stone or a tree would say: Muslim, the servant of Allah, there is a Jew behind me; come and kill him; but the tree Gharqad would not say, for it is the tree of the Jews.'"
Quran 9:5: "When the sacred forbidden months for fighting are past, fight and kill the disbelievers wherever you find them, take them captive, torture them, and lie in wait and ambush them using every stratagem of war."
Sura 3:151: "Soon shall We cast terror into the hearts of the unbelievers for that they joined companions with Allah for which He had sent no authority: their abode will be the fire; and evil is the home of the wrong-doers!"
Sura 8:60: "Against them make ready your strength to the utmost of your power including steeds of war to strike terror into (the hearts of) the enemies of Allah and your enemies and others besides whom ye may not know but whom Allah doth know. Whatever ye shall spend in the cause of Allah shall be repaid unto you and ye shall not be treated unjustly."
Tabari IX

"Allah permits you to shut them (women) in separate rooms and to beat them, but not severely. If they abstain, they have the right to food and clothing. Treat women well for they are like domestic animals and they possess nothing themselves. Allah has made the enjoyment of their bodies lawful in his Quran."
Tabari I:280: "Allah said, 'It is My obligation to make Eve bleed once every month as she made this tree bleed. I must also make Eve stupid, although I created her intelligent.' Because Allah afflicted Eve, all of the women of this world menstruate and are stupid."
Ishaq:327: "Allah said, 'A prophet must slaughter before collecting captives. A slaughtered enemy is driven from the land. Muhammad, you craved the desires of this world, its goods and the ransom captives would bring. But Allah desires killing them to manifest the religion.'"
These quotations are not out of context. They are representative of dozens and dozens of other messages in the Islamic "holy" texts. Clearly, they have inspired the violent and hateful behavior of followers.
I think it would be irresponsible to ignore how the Q'ran instructs its followers.