¿Including the whole planet and by also doing suicide as is doing Russia now?
Yes, of course, they'll do it, if necessary. "Better dead than red", and all that stuff. We know that Alaska and California are as important for them, as Crimea and Novorussia are important for Russia, and they ready to pay at least fifty million American lives to keep them (and we are not pay even one million of Russian lives to take them). That's why we don't actually try to take them (at least until the stage when the actual nukes started to fly).
In their Soviet eyes Gemany was also once part of the USSR.
As if Karl Marx was a Russian.
They say for example Germans including Austrians never existed.
It depends. Actually, the lingustic, cultural and political differences between so called Germans are much more significant than the differences between Russians and so called Ukrainians.
Indeed lived in Germany always only Slavs. That's why Spain, England, Scandinavia, France, Italy and others have to become Russians again.
Not necessarily.
And because they are "East Rome" (Successor to the Byzantine Empire) they think also East-Europe and the countries of the Ottoman empire are also their legitimate possession.
"Third Rome". First Rome fell, second one (Konstantinopolis/Tzargrad, now Istanbul) fell under attacks of barbarians who now became West Europeans and Turks. Moscow is the Third Rome and protector of true Christianity, and there will be no Fourth one, because after the fall of Moscow true Christianity will be almost eliminated and antichrist will come in our world. While Moscow is standing as the last bastion of Christianity - antichrist can't came in our world, and that is exactly why all his servants want to destroy Moscow and genocide Russians. It's quite popular opinion among Orthodox Christians. I'm an Atheist, I don't believe is such things, but, sometimes it seems possible that the Western "moderate Satanists" believe in it, and ready to destroy Russia even if the price of it will be existence of the USA. Satan always betray his most loyal servants after all.
California has no army. Only the USA has an army. That's why your states live without war with each other.
There is National Guard in the states. And no, there was American Civil war, between Northern and Southern States.
The war in the Ukraine is a war of Russia on Europe, against freedom and against the right of all peoples in the world to self-determination.
If under "freedom" you understand freedom to discriminate, abuse and genocide Russians, Jews, Gypsies or whoever else, then definitely yes. We do stand against any form of Nazism (especially against anti-Russian Nazism).
So Russia also fights the world and the international laws.
Also Russia is fighting for the world's majority against parasitic Europe. And no, international laws were destroyed by the illegal and unprovoked western aggressions against Serbia and Iraq.
And the USA indirectly supports Russia by doing so by also attacking the international structures which grew since World War 2 and even since much longer times.
I fear somehow not onyl Russia but also the USA forgot to close the box of the Pandora which you had opened in World War 1+2 together with Russia. World War 2 did by the way not end on 8th of May 1945 when the German army surrendered. The Russians continued. You had to stop them in Korea - what had been by the way the only time in your history where you was a very short time in a real war. But instead to try to learn you ignore that.
There are two possibilities - either you learn how to live with Russians (little hint - first of all you shouldn't discriminate, abuse or kill them nor violate international laws nor make preparations to the attack against Russia), either there will be the war until you are ready to study it hard way or die out.