I agree....people who are probably too young or didn't care at the time...forget that Bush was very hated, well within his first 4 years... and during his last 4? Psssshhhh....that man was called the anti-Christ- "retard", a monkey etc etc ...anyone recall Fahrenheit 9/11??
The Democrats from back around 2000, still probably believe to this day that Bush "stole" the election.
I think this staunch extremist, partisan party politics began with him. Prior to that, a Dem and Repub was a Dem and Repub, but I don't remember any flat out hatred during the Clinton, G. HW. B or Reagan years. And when I say hatred, I'm referring to this incessant name calling, and voters on the opposite end disagreeing with EVERYTHING that they had to say for the sake of maintaining their position on very specific extreme talking points.
I think hyper extremism was heightened by the internet and the exposure to independent forms of media to the average Joe or Jane didn't have in the previous years. I think alot of these extreme views were highlighted and became meme talking points where before they would have just been tossed away in the loony bin.
But prior to that, regardless of where you stood...for the most part there were always things that you could agree with both parties, now it doesn't seem that way.