Simple but valid question: "so what really defines a school as liberal vs conservative?"

Those who protest every silly thing tend to get an outsize share of the attention, though. That is what they want.

The same goes for conservatives, where those who promote ridiculous conspiracy theories or bigotry get the most attention. That is what they want.

But the end result is the general lowering of the level of political discourse to hateful sloganeering, where it is much less possible to discuss anything political without devolving into a shouting match.