The Nazi's certainly didn't think of themselves as evil. They called the other side evil/Jews evil.
Same with Stalin's USSR.
> The whole world thinks that Russia is doing an evil thing
100+ countries abstained from voting in the resolution condemning Russian actions. That includes India and China which account for 30% of the world population. So the "world" clearly isn't part of whatever propaganda echo chamber you're in.
The world, like me, doesn't care what happens in a distant corner in Eastern Europe.
In any case, geopolitics isn't good vs evil: countries just pursue their strategic interests. Realpolitik
The whole world thinks that Russia is doing an evil thing, just as the whole world thinks Nazi's did an evil thing.
You claimed literally "There's no good vs evil", while there clearly is.