In much of Europe where there is proportional representation leading to coalitions, there are coalitions between the center right and the center left.
It would be nice if the never-Trump Republicans and other Republicans who voted for Trump but aren't insane could join with the Biden party while AOC and her fellow travelers started their own separate 'progressive' party.
the rest of the world isnt just europe. Also never trump republicans dont really exists or atleast in sizeable numbers , they are just a media fixation.