Yes, yes, If we could just Make America Great Again! Good lard, man...there have been fisticuffs and even duels to the death, Americans have always been hyper partisans. My grandfather was named after a four-time Democratic presidential candidate(who never won)
That's partisanship. The civil war, prohibition, civil rights...
What issue has this nation ever faced that had no partisan divide? That's normal politics.

Whatever it is that Republicans have become is not politics as usual. And they've been going this direction for several decades. Trump is just the culmination of it.

The two parties have to agree to exist in the same realities before negotiations can begin.