QAnon is big with Democrats and non Republcians too. It's hasn't infiltrated the mainstream party but go to any hood and the number people who belive in conspiracy theories about Illuminati, the "global elites", who follow Alex Jones, believe the moon landing was fake, the Earth is flat, all kids of antisemitic conspiracies is way higher than you'd expect, it is quite sad. The funniest thing is that it's really disruptive because you try to talk about policy that has real cause and effects on their lives and they tell you that Biden and Hillary are sacrificing children...
It's nuts.
The internet is cancer.
Crazy conspiracy theories existed before the internet, sure. But they have an audience like never before thanks to it.
Still, I highly doubt the vast majority of people in this country even have heard of these theories, let alone believe them. Is it still too many? Yep.