Yeah, we wouldn't want to be humiliating a civilization that's currently killing another one. That would be too tough. /s
The Allies let Hitler annex Austria and parts of Czechoslovakia because "hey, let's not start a war with Nazi Germany", and then let Putin annex Crimea because "hey, let's not start a war with Putin's Russia", but talking and diplomacy only gets you so far and after that, unfortunately, war requires tough measures that hurt everyone, because while you sit around, more people are dying and you're setting a precedent for the future that it's ok to invade other countries and kill innocent people, because you previously let others get away with it before in order to avoid war.
I'm not really a fan of the theory, but I'm assuming that's what is being referenced.
I mean, if its so obvious that even Trump can figure it out, how dumb are you???
You really think Trump actually figured something out, and not just parroting (without understanding) what others in Europe had been saying for decades? Really?
The EU has been built on the concept of collaboration. It's not for no reason that Macron called a couple weeks ago for being careful not humiliating the Russian civilisation (with of course sanctions being necessary), to fend off the risk of seeing the same thing repeating itself in a few generations. History demonstrated that many times.