Letting Putin keep his ill-gotten gains will only TEMPORARILY stop the bloodletting.
If he gets away with this, he will then turn on NATO countries.
By letting him get away with it, you open the doors to a real world war. Just like letting Hitler get away with his dismembering of Czechoslovakia opened the doors to WWII
“If he gets away with this, he will then turn on NATO countries.”
Link please.
“Just like letting Hitler get away with...”
The only Nazis in this war are on the Ukrainian side.