Citation fucking needed. You can't just claim any difference between people must be racism - if anything, that's a racist attitude to assume that in the first place, in fact.
I (and who knows how many a kid) was bored out of my mind all of kindergarten and first grade since I was one of the few kids who could read, and our gifted program didn't start until 2nd grade (I think in 1st grade I tested reading at 7th-grade level?). It's gratuitous torture to mix kids of different ability levels - both for the competent and the incompetent kids.
Whether Democrats will vote for someone because of anti-intellectualism is an open question, but it worked for Republicans, so it's feasible.