The right declared war on anyone to the left of Romney at least in 2008 when they decided to do everything possible to ruin Obama's Presidency.
Their firm belief is that Democrats are evil and that they hate America. Even people who admitted that Trump was horrible justified voting for him with the claim that any Democrat would enact "socialist" programs that would DESTROY America.
They don't want to compromise with Dems anymore than a fundamentalist preacher wants to compromise with Satan.
If Biden thinks he's going to make nice with these people and get any cooperation he's in for a very painful surprise.