This has been the great motivator this whole time. Fox came from the same people that designed Nixon's strategy to make white people fear blacks and hippies and god knows what other protected classes. Before that you see politicians do that for everything. Racism and xenophobia are fear based, irrational fears of people that don't look like you or people you grew up around.
Fox and the Right media are an environment that you live in, not just a TV show you consume. The terrifying part is after working for Democrats, I feel like most of them relate a lot more to Fox news than anything resembling real life even though they pretend to hate it and republicans/conservatives.
I don't trust any polling. Especially after old rich whites went super hard for Biden in the spring.