The 60-70% of the GOP that wants to move on from the insane 30-40% contingent is held hostage by the likelihood that Don goes petty and starts his own ticket out of spite - basically dooming republicans in national races. You see it happening to an extent already within the party, but he'll blow it all up if he has to. That's the kind of guy he is. If he ain't winning, nobody is. Shameful really - we need two healthy parties for effective governing. Now we have a party held hostage by a cultish clown show of culture grievance and worship of a man that makes Biff Tannen look like a saint and the other that thinks they can solve any problem with printing more money, adding more regulation, or placing an x at the end of perfectly good words.
I AM the "other side", and I don't think we can solve most problems by printing money, or adding regulation (though I do think many problems stem from a lack of proper regulation, though much of this is corruptly not properly enforcing existing regulation, not a need for adding new regs), and I have never cared if an X is added to a descriptor, though if a historically oppressed group wants to be referred to that way i have no reason not to as I don't care either way. And I don't know any serious lefties that think that either. If any, they are very few, not nearly the dominant strain of the Party that the unhinged Republicans are.
This kind of false equivalency is common, as we all attempt to deal with the GOP going fully off the rails, and it is tempting to try to make sense of it by equating both sides. But it is not a problem of both sides, and it doesn't help your argument to use a false equivalency.
Things flip in politics every few decades. We used to have serious, realistic cons and ideological held in the clouds hippies. It flipped. The sooner we all accept that, the sooner the political process will shake out in a healthy way.