I made the mistake of balking at some particularly unhinged Ukraine/Russia rhetoric offline yesterday and got called a vatnik, a tankie, a Russia lover and I was even suspected of being pro-Israel and apparently a nazbol Aimee Therese follower or something
I'm not even invested in this shit, I just find the insane saber-rattling and warmongering unsettling 
When someone tells you Putler's going to invade Estonia, Poland and Finland for Lebensraum next if he's not stopped in Ukraine, just nod your head solemnly
At this point it's widely acknowledged that ukraine cannot win back the territory militarily. So build everything on that undeniable standpoint and you can't really be accused of anything. The onus is them to convince you you should gaf about the territorial integrity of a country halfway around the world that didn't exist before 1990. NYT reported that US intelligence does not believe russia wants to invade other countries (this was phrased as "it has always held this to be true", a hilarious admission).
If they really push the issue I might bring up that east & west ukraine have very different attitudes toward Bandera so what's the loss, let the banderites have the west where they can all circlejerk about their fascist hero in peace.