Some ideas are so seditious they cannot be allowed into the building, let alone 'entertained'. That is, ideas which, despite being grasped with no difficulty by the proles, run contrary to the received wisdom of the establishment elite.
The idea of Capitalism in Communist USSR.
The ideas of Protestantism under Mary Tudor.
The idea of secular pluralism under the Taliban.
The irony is that these protesters actually have the elites (politicians, public and third sectors, academia, bien pesant media) on their side. They are the oppressors, not the oppressed, and it's the fear of losing power that drives their rage.
Imagine it was the other way around, Biological sex is the only official marker, and trans people are struggling to have their voices heard. Would I be protesting against them? No! I'm the idiot who would take their side, because I wouldn't realise they were planning to abolish biological sex altogether.
Wait... That actually happened 🤦♀️