For the most part, I have to agree with you. Excepting that while the GOP does have a slim lead in both houses, they are not and never have been as polarized as the Dems. Without help on both sides of the isle, the President can not advance an agenda.
If one takes an honest look at this administration in historical context, he is no better or worse than what we have had in the past. Most of us realize the Obama spent eight years pitting segments of the population against each other for political gain. This practice is not unusual and has historically been common place. Where he was able to take it to another level is with the advent of social media.
I look at some of the most well thought of presidents, from FDR, Kennedy, Teddy all the way back to Lincoln, Jefferson and Adams..all of these guys would be torn to ribbons in today's environment. Then, just for fun, take a close look at the less popular Presidents..Washington has been a cesspool of corruption for almost two hundred years.