Business owners in the US are *much* richer than professional class Americans. And most US business owners are not college grads. This is true in tech companies as well as restaurants, pillow companies, real estate, general contractors, etc.
The "economic anxiety lead to Trump" is a lie, and the data shows the opposite. The more racist a person, the more likely they were to vote for Trump. The richer a person, the more likely they were to vote for Trump. Jan 6 was mostly rich folk.