This particular refrain is one that's worth examining from the lens you're dismissing. Under what frame is "war less common" in Europe (or even "East Europe")? An extremely narrow one at best, IMO. A large proportion of pro-Ukrainian propaganda also outright contradicts this notion by referencing historical acts of Russian aggression.
There's a big difference between acts of aggression and war. With the exception of a Ukraine in 2014 and a week or two in 2008 in Georgia, most Europeans have to go back to the 90s for any conventional war. True, in Eastern Europe and the balkans things have been less peaceful but even so they've been living in times of almost no war.
I do concede that this is the least relevant point though, the similarity one is much more significant.
This particular refrain is one that's worth examining from the lens you're dismissing. Under what frame is "war less common" in Europe (or even "East Europe")? An extremely narrow one at best, IMO. A large proportion of pro-Ukrainian propaganda also outright contradicts this notion by referencing historical acts of Russian aggression.