I agree, but see, in all those attempts that failed; Marcuse and their ilk would have said it wasn't done correctly. That's what shifted them from Marx's economy based theory to Mao's cultural based one. It's kind of baked into the philosophy, er, religion of communism that if one attempt doesn't succeed, it has to be modified in order to make it truly work. There's always one more revolution.

But similar to what you quoted from Judges-- Romans 1:18-25.