I'm still not a major fan of Mitt Romney, but it's really strange how times have changed. I disliked him very much in 2012.
Maybe your dislike for him in 2012 was ridiculous.
Nah, our standards were just a lot higher. Remember when he sought and received the endorsement of the Birther 'N Chief? Real subtle message there, Mitt. And look where playing footsie with racists led the establishment wing of the GOP. The best you can say about Mitt Romney is that unlike virtually all of his colleagues, he draws the line at authoritarianism and treason.
Its a two party system , people get endorsements from terrible people all the time. Even now Biden has the endorsements of utterly despicable people like Ilhan Omar and Linda Sasour(Two people who are more despicable like Trump) because we have a two party system.
You might actually have a point had Trump been an elected Republican in 2012. Even then, presidential nominees typically distance themselves from fringe back-benchers. But Romney eagerly and very publicly embraced Trump, who was, at the time, the nation's most prominent birther. It's pretty obvious he was courting the GOP's not-insignificant white supremacist bloc.
Mitt Romney was able to keep the quiet parts quiet, at least.