I don't know how much Dems think QAnon is driven by poverty and lack of education, but to the extent they do, they're wrong.
In some ways, educated people are more susceptible, misapplying skepticism and critical thinking, almost like an autoimmune disease https://newrepublic.com/article/161266/qanon-classism-marjorie-taylor-greene

-Cults can attract well educated people, who have an especially hard time getting out since it requires admitting to themselves they were wrong and not savvy enough to see through it.
-Terrorists are rarely impoverished. If you are, you worry about day-to-day, like getting food.

Many participants/supporters of the Capitol attack have money/education:
-Who can travel to DC in the middle of a work week?
-For militias and military cosplayers, gear is expensive
-You need some understanding (even if misguided) to pick Jan. 6 and denounce current officeholders

QAnon believers, and many Trump supporters, don't think they're dumb or confused. They think they're smarter than you, because you trust official sources.
That lack of trust—assuming govt, media & academia are lying or at least hopelessly biased—is hard to overcome with education