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
I had a friend yesterday say Ukraine has to win... I just said "but they aren't and they won't, the occupied area is going to be annexed". Then went on about how the major powers are just treating the country as a pawn. They shut up pretty quick.
Based and realism-pilled
The best way to defeat Liberal idealist nonsense is dunking their head in cold water
The news will probably sell to your friend how Ukraine has won after the peace agreement comes and Ukraine gets divided.