Well, the main difference is that we have a completely different network of alliances today. Hitler probably wouldn't have invaded Poland if he had known he'd have to fight pretty much everybody as a consequence. Maybe he would have because he was a lunatic.
Dude. The guy invaded Russia when they had a non-aggression pact. While still at war with most of Europe.
Still, Putin isn't Hitler.
Anyway the situations do not compare at all. NATO and Russia both have nukes, so they won't fight. Ukraine isn't in NATO, so that's bad for them. Whatever the outcome of this will be, it might be bad for Ukraine, but it won't be WW3.
Well, that makes me feel better.
Which makes them pretty average internet users. Internet comments are the worst place to get an opinion on anything.
I'm sure I can think of somewhere worse! Like the drunk tank of a jail. Or the rest of a jail. Or any party's headquarters.