^Not necessarily true. Data analysis by CES (?) or someone said Crooked H was the first Democrat to win college-educated whites, and by a decent 2-point margin.
Interesting and not totally unbelievable. Either way, I am guessing that was within the MOE and the exit polls said otherwise (people use the exit polls for all kinds of things until they say something they have a hard time believing, it seems ... not saying you), so I think it might be fair to say it was a tie? I also would wager that "wealthy college-educated Whites" voted decidedly Republican if it was tied, as I'm guessing most lower-middle-class Whites with a degree leaned left. It will be interesting to see how they vote in the 2018 exit polls for sure.
You are wrong. Trump lost wealthy college-educated white voters:
https://ibb.co/gB1E06
Also, wealthy college educated whites were more Democratic than non-wealthy college educated whites.
A lot of this is regionalism IMO, along with the educational divide (among whites, at least) between the parties being replicated in a sense
within the college-educated white population in terms of "elitist" vs. "populist" (to put it crudely) universities and colleges.
People with degrees from the Ivies, Stanford, Georgetown, etc. -
including many of the Republicans among them - would be a lot less inclined to vote for Trump than would people with degrees from your average state university or (especially) private Christian college - particularly in erm, Flyover America (They'd also tend to have lower incomes). I think the reasons for this should be obvious.
Though this doesn't - and didn't - extend downballot. Those Clinton Republicans voted for Clinton (or rather, against Trump), not for the Democrats as a whole, as we are all well aware now (I hope?).