Barring major platform changes, I don't see why Democrats would cede the white vote. People here seem to forget that liberal white people are more ideologically in line with the Democratic Party (and appalled by the GOP) than even most minorities who vote for Democrats.
Democrats are always going to have a floor among non-religious whites or whites who support certain issues like the environment, abortion, gun control, etc. That's a huge chunk of the electorate, which often doesn't get a lot of attention because they are highly concentrated in large professional metro areas that aren't competitive in general elections. Though many seem to be relocating to places like Texas and North Carolina and that's really going to screw the GOP long term. See: https://www.theatlantic.com/ideas/archive/2019/09/american-migration-patterns-should-terrify-gop/598153/
CRT and this antiwhite nonsense will do it in for them.......Wisconsin, Minnesota and Maine are universally white states and this stuff will shift these places.....
In Wisconsin? Sure.
In Minnesota? I am not so sure of this, considering that Minneapolis is "woke", as we saw the Minneapolis metro area swinging blue heavily after George Floyd's death.
In Maine? Who knows?