Definition of partisan
1 : a firm adherent to a party, faction, cause, or person
especially : one exhibiting blind, prejudiced, and unreasoning allegiance
political partisans who see only one side of the problem

I strongly disagree with the premise that the root problem is hyper partisanship “on both sides”. RR is Exhibit A. I am Exhibit B. I don’t especially like the Democratic party - in my opinion it is not very open to innovation or pragmatic creativity. But I suppose any party needs a certain level of compromising boundaries that shave off the wild hairs in order to achieve a critical mass of votes.

I do think we can label today’s Republican party as Ultra Hyper Partisan (see definition above), though it isn’t devotion to any principles or beneficial political platform. Trump has amassed it all to himself, but it has been coming for decades. There has been an embrace of dishonesty as a prime tool of advancement - as someone put it recently, we are in a post-fact, post-truth, post ethics era. Many Republicans have been forced into complying because if they step out of line, they will be incinerated by a flamethrower of lies. Fear now rules the Republican party, and it is going nowhere good.

It’s not partisanship, it’s corruption. You know when you used to get an error message, “file corrupted”, on your computer? That meant something had gone wrong with the programming that couldn’t be fixed in order to recover the file. That’s a good analogy for what has happened to the Republican party.

You never change things by fighting the existing reality.
To change something, build a new model that makes the old model obsolete.
R. Buckminster Fuller