In what way is 2) or 3) of my points related to a perspective? Those are either historical fact or current situation.
On territory, Russia can have a different view and they are entitled to it - but doesn't change that it is a wrong perception. Not sure, if Russia's perspective should then guide policy "in the West".
I agree 2 and 3 are facts, but the error is you think they are relevant to how Russia see the situation.
I understand you think that perception is wrong, but remember, global geopolitics is not about "who is right", it's about "how do we find the least violent solution to this conflict".
If you read MacNamara's book on Vietnam, he actually goes back and talks through the war with the North Vietnamese leaders at the time. The big takeaway was there were plenty of opportunities to de-escalate the conflict (acknowledged by both sides), but each side was so sure they were right that there was no backing down.
It's a tough pill to swallow to realize you could have gotten the same thing as you have today without killing a few million of your own citizens.
Edit: Your reply "If Russia wants to go nuclear over this, then so be it" is the most horrifying thing I've read in a while. But regardless there is a lot of evidence to show if Hitler had been restrained early in the lead up to WW2, before Germany had rearmed, it could have prevent WW2.
In the end, not sure it really matters how Russia sees the situation to be honest or what Russia thinks is relevant to them now[added]. If Russia wants to go nuclear over this, then so be it - they will go nuclear over something else if not this one if they are so willing to act on perceived threats not realized ones.
EDIT: I cannot stop Russia from doing what it wants to do but like in the cold war I am not stopping living my life, either.
Also not sure it is always about "least violent solution", was WWII the least violent solution or what would have been the least violent one and how could it have been reached?
On territory, Russia can have a different view and they are entitled to it - but doesn't change that it is a wrong perception. Not sure, if Russia's perspective should then guide policy "in the West".