That was during the cold war 40 years ago and the US couldn't have said otherwise at this time given how entrenched and polarised the conflict was.
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.
And with your reasoning, Hitler would have enslaved all of Europe and Japan all of Asia or the former Yugoslav nations would have massacred each other.
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.
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.