The original goal of the hardcore NeverTrumpers was to drive out Trump and replace him with a ‘kinder gentler Republican’ (a little Bush lingo there). Perhaps Pence, or some other arrangement. (actually it was originally supposed to be Paul Ryan at the Convention in 2016, but the elected Republicans let Ryan know what was in store, if he did make that move)
But now with even the NeverTrumper count down by 90% (the vast majority now realizing that, while Trump is no Reagan, he is, in fact, BETTER than Reagan), and Trump at 95% overall Republican support, they realized that their options are quite limited...and nothing else is open to them than openly supporting the Democrats. And so they’re at that phase now.
I couldn't agree more.