Yeah, that's devastating. Rasmussen has been the second most Trump-leaning regular poll this cycle after the LA Times one, so if it's moving like this, some polls might be moving to double digits. I think the possibility of some very red states flipping is on the table.
538 modified their
flipping tool so that you can break down whites by gender (rather than education), and if you move the 'white women' vote further Democrat, it doesn't take much until you see places like Missouri, Georgia, Indiana, and Arizona flip.