Your game of loose association, where just because some individual made some outlandish remarks in the past, or they “liked” something objectionable on social media, then anyone who voted for them or share a political party with them or didn’t disavow them to your satisfaction must therefore also agree with those things and substantively back them as a matter of policy - is facile.

Btw, dismissing things as “whataboutism” isn’t an effective argument, its just an admission of hypocrisy.