Trump is the first president that is more racist than America as a whole.
Other presidents followed the majority but Trump is more "obvious" and is really trying to project a racist image. Most presidents have used political policies to be racist.
Biden is smart. We know plenty of racist presidents like Reagan but Biden is trying to juxtapose Trump vs everyone else to show just how ridiculous he's been. Let's the 50/50 whites know that there's racism and then there's RACISM.