Consider the possibility that "The New Left dropped the ball on ecology because it was a hippie thing" was because "It was a style thing" (see my previous).
Wouldn't that be just awful?
Imagine "dropping the ball" on race (the New Left, conventionally, was about including race and gender and notionally environment in thinking through Marxism) because thinking race was "stylistically" not cool vis a vis thinking class.
Or literally that the clothing or the music…or indeed the skin color…was wrong.
It's just awful, right?
So that's not a good reason to drop the ball on ecology.