In copying Judaism (even copying our idea of primary holy book, then another for the human commentary as with Torah and Talmud/ Qur'an and Hadiths) Islam copyied along with everything else many of the same commandments. Including commanding the death of non-members. Originaly Judaism said to kill non-Jews. Islam came along and reiterated the same commandment but used the word 'infidels.'
It's revealing much of the grief heaped onto Islam by non-Muslims is better directed at Judaism who came up with it first. Islam simply copied us.
Before criticizing Islam should learn your own Bibles.
Murder in the Bible
Kill Followers of Other Religions.
1) If your own full brother, or your son or daughter, or your beloved wife, or you intimate friend, entices you secretly to serve other gods, whom you and your fathers have not known, gods of any other nations, near at hand or far away, from one end of the earth to the other: do not yield to him or listen to him, nor look with pity upon him, to spare or shield him, but kill him. Your hand shall be the first raised to slay him; the rest of the people shall join in with you. You shall stone him to death, because he sought to lead you astray from the Lord, your God, who brought you out of the land of Egypt, that place of slavery. And all Israel, hearing of this, shall fear and never do such evil as this in your midst. (Deuteronomy 13:7-12 NAB)
2) Suppose a man or woman among you, in one of your towns that the LORD your God is giving you, has done evil in the sight of the LORD your God and has violated the covenant by serving other gods or by worshiping the sun, the moon, or any of the forces of heaven, which I have strictly forbidden. When you hear about it, investigate the matter thoroughly. If it is true that this detestable thing has been done in Israel, then that man or woman must be taken to the gates of the town and stoned to death. (Deuteronomy 17:2-5 NLT)
Death for Blasphemy
One day a man who had an Israelite mother and an Egyptian father got into a fight with one of the Israelite men. During the fight, this son of an Israelite woman blasphemed the LORD's name. So the man was brought to Moses for judgment. His mother's name was Shelomith. She was the daughter of Dibri of the tribe of Dan. They put the man in custody until the LORD's will in the matter should become clear. Then the LORD said to Moses, "Take the blasphemer outside the camp, and tell all those who heard him to lay their hands on his head. Then let the entire community stone him to death. Say to the people of Israel: Those who blaspheme God will suffer the consequences of their guilt and be punished. Anyone who blasphemes the LORD's name must be stoned to death by the whole community of Israel. Any Israelite or foreigner among you who blasphemes the LORD's name will surely die. (Leviticus 24:10-16 NLT)
Infidels and Gays Should Die
So God let them go ahead and do whatever shameful things their hearts desired. As a result, they did vile and degrading things with each other's bodies. Instead of believing what they knew was the truth about God, they deliberately chose to believe lies. So they worshiped the things God made but not the Creator himself, who is to be praised forever. Amen. That is why God abandoned them to their shameful desires. Even the women turned against the natural way to have sex and instead indulged in sex with each other. And the men, instead of having normal sexual relationships with women, burned with lust for each other. Men did shameful things with other men and, as a result, suffered within themselves the penalty they so richly deserved. When they refused to acknowledge God, he abandoned them to their evil minds and let them do things that should never be done. Their lives became full of every kind of wickedness, sin, greed, hate, envy, murder, fighting, deception, malicious behavior, and gossip. They are backstabbers, haters of God, insolent, proud, and boastful. They are forever inventing new ways of sinning and are disobedient to their parents. They refuse to understand, break their promises, and are heartless and unforgiving. They are fully aware of God's death penalty for those who do these things, yet they go right ahead and do them anyway. And, worse yet, they encourage others to do them, too. (Romans 1:24-32 NLT)
Too many to post here but it goes on and on. Everything being thrown at Islam for being violent or murderous
STARTED in the Bible.