As a white person who does get tired of the constant "white people are shit and no matter how much you try to not be racist you'll always be racist and you should feel guilty" narrative going around, I would never dream of listening to Trump? Even if I don't agree with "the radical left", think "cancel culture" has gone too far, and am more centre left, I would never consider voting Trump though. I don't know a single white ally that would vote for Trump. And Biden is nowhere near radical left, nor is he a puppet of the radical left. In fact the radical left HATES Biden because he's not Bernie.
I don't think Trump was speaking to well meaning "white allies" trying to seduce them if they're disillusioned with cancel culture, because whatever gripes we have with the far left, we still see Trump as far worse.