> You want other people to die in the trenches or worse, to die in a nuclear war

Other people are dying, and more people will until the aggressor is stop. The aggressor has shown loud and clear he has no intention of stopping.

> Again, war mongers will always prefer comparing to the few times where war was the only solution

Because the situation is comparable. Putin has clear and overt ambitions for further expansion (one of his minions already published the plans with Moldova next). If he isn't stopped, like he wasn't in Georgia and Crimea, he'll just continue. So the comparison is very apt. Yes, nuclear weapons add a serious nee dimension to the problem. That doesn't mean we should let Putin get away with war crimes.

Edited to add: https://kyivindependent.com/russia-military-building-up-at-f...