There are causes which have just and noble origins but become corrupted and are discredited. There is a tipping point.
Nationalism to drive freedom, self-determination and resistance to empire may be just and noble. Nationalism as the basis for wars of territorial expansion and discriminatory subjugation is not. There was a tipping point when nationalism once meant the former but came to mean the latter. Thereafter, nationalism declined and died.
Communism for the sake of the poor and oppressed may be just and noble. Communism as the justification for the mass murder of millions is not. There was a tipping point when communism once meant the former but came to mean the latter. Thereafter, communism declined and died.
Intersectionality, or more specifically intersectional solidarity, as the drive to simultaneously stand against multiple sources of oppression and discrimination may be just and noble. An intersectional solidarity that systematically mobilises ‘useful idiots’* to stand with terrorists which intentionally rape, torture, degrade and murder civilians and then publicise and celebrate these acts is not. The tipping point has been reached. People will not permit themselves to be useful idiots. Their peers will hold useful idiots to account. Intersectional solidarity will now decline and die.
* A term dubiously ascribed to Vladimir Lenin, ‘useful idiots’ are defined by Wikipedia as a “person perceived as propagandizing for a cause—particularly a bad cause originating from a devious, ruthless source—without fully comprehending the cause’s goals, and who is cynically being used by the cause’s leaders.”