Uh Hillary was a really strong candidate among Latinos throughout her career and did almost as well among African Americans as the first black President. Hillary was unpopular among working-class whites. Not minorities.
I'll be surprised if Trump doesn't improve among African Americans and Hispanicsby marginal amounts (say 3 - 5 points) unless the Democrats nominate someone with strong appeal to these communities.
Of course I'll also be surprise if Dems don't do 3 - 5 points better amog white voters.
Uh no, black turnout and votes literally went back down to Kerry/Gore numbers with her, and Hispanics dropped a bit too. If she had actually gotten Obama's numbers, she would've flipped Arizona, gotten a majority in NM, and kept Tump to a plurality in Texas...she might well have even retained Florida.
However, this isn't cause to celebrate for Trump, who did worse among minorities than literally every candidate but Romney... and arguably that was only because of his economic populism that he barely did better.
Unpopular as she may have been with WWCs, there's denial that she definitely did not pull off the Obama Coalition necessary to win, all because of a misguided attempt at "crossover appeal".
And as for Asians, the Paris Accords fiasco has burned that bridge.
If he wins in 2020, it'll be because he took the white vote by 60% or so, or enough voter ID laws got passed in time to lower turnout even more, creating more Wisconsins in the process.