Problem here is that many Repubs have convinced themselves that they and only they are the "Real Americans, the genuine article, the true patriots and protectors of all that is holy" and everyone else must be illegal immigrants, commies, satan worshippers or enemies conspiring to overthrow the America as they see it as.
The one thing that needs to be kept in mind is that Trump, being who he has proven to be over those four horrific years of his term has a following of 70+ millions of whom have not only completely ignored those glaring personality disorders of his and the disastrous results those disorders brought upon the nation, they've also had to fabricate excuses for Trump's nefarious behavior as well as conjure up unbelievable conspiracies against Biden and the Dems so as to justify their putting party over country.
For lack of legislating anything meaningful for the masses, the party has had to resort to committing dirty deeds done dirt cheap with the full approval of their rank and file members. IOW, their working class members have chosen to sacrifice themselves at the alter of the wealthy in order to remain faithful to a party that exploits them for everything they've got.
That's one hell of a scam their leadership have managed to pull over on them.