Whiteness — more than education, age, class and more than gender — was the most reliable indicator of whether someone was likely to vote for Trump. Including non-Black people of color who are white-passing, or who self-identify as white.
If you’re foolish enough to think Trump is so bad that just anybody can beat him in 2020 (kinda like everyone thought in 2016, remember?) then you really haven’t been paying attention. Despite what they might say publicly, most white people love Trump.