It's a tough choice to make, but I think we can still call off the war: but it may take dividing and inevitably temporarily weakening the progressive side for now, which is why some are hesitant. People like Joe Biden won't go this far, because he needs at least some far-left votes to win, and he can't upset them, which I can understand. But we, as intellectuals, can decide this is where our conscience lies for now, and take our own stand in this 'culture war'.
What I am talking about is, we need to stare down radical critical theory, which is what is driving all this, and we may even need to ally with conservatives on this particular issue. Jordan Peterson has his faults, and I certainly don't share his politics (e.g. the C-16 saga), but he was partially right about what he called 'postmodern neo-Marxism' (wrong terminology perhaps but some correct observations). We need to help this discussion and awareness along, not try to dismiss it like some progressives did back in 2017-8.
If it means a divided progressive side and hence slower pace of change for a few years as a result, or the 'right' gaining a bit of ground as a result, so be it. When liberalism re-supplants critical theory as the main ideology on the 'left', there will be plenty of wins we can have down the road, which will totally make up for the 'lost opportunities' in the short term. If not, every Yang-like figure would be sunk by the radical critical theory crowd, who want 'revolution' but nothing else.