Opinion of the Obama-era Republican Party

[RINO Tom]

Honestly, still a "dying majority party" resistant to the new demographic and economic realities, and stubbornly clinging to the old ways. That's evidenced by a 2.1% popular vote loss and massive deficits in the big urban blue states. Old white people are certainly dying and that's one reason the popular vote went to the Democrats. They are also a regional party (South, Midwest) which is why they're having popular vote and mandate problems.

I think the obstruction of Obama was a serious error that led to increased polarization - a kind of polarization that will rebound to the Democratic Party's benefits, when the dam bursts.  

You're being intellectually dishonest here. You make no note of how Trump of all people over performed Romney with Hispanic and Black voters by 2% and 3% respectively. Imagine what a non-asshole Trumpist will be able to do.

That would never happen, since Trump's entire appeal is being an asshole.

Ding, ding, ding, ding!  Thinking a coherent heir to "Trumpism" (it's in the name, people, idol worship pure and simple) will emerge is as delusional as thinking ... well, that any one faction will dominate a party.