He's alluding to here that people who believe everything is political are more extremist in their views. Meaning, those who are moderate or more middle ground typically do not believe everything is political. It's implying that doing nothing or maintaining the status quo is inherently not a political action.

But of course, it is, and we have practically infinite historical examples to show that. The status quo does not exist on its own, it's a product of the dominant ideology, which is an ideology.