Leftism is inherently self-limiting and time-limited. Though after a while, the rising generation is no longer directly confronted with the horrors of Leftism and they fall back into such Utopian “thinking.”
But then the misery of Leftism becomes quite clear again, and people turn Conservative again. Wash. Rinse. Repeat.
But the Left is like a guy with a vicious dog: It’s all fun and games when the dog is vicious toward others. But eventually that dog is going to bite you!
And right now, we are starting to see the Left get rightfully nervous about the Hell they have unleashed. Trust me, this won’t end well for Lefties. It’s just that this works on a generational timeline, though there are fits and starts.