That's actually not true its pretty even in terms of donors
https://www.opensecrets.org/elections-overview/biggest-donors
It has more to do with viewing habits. Far right politics draws in more radicalized violent people seeking validation of their world views. It doesn't happen in the mainstream outside of Fox.
It gives more room for online personalities like Alex Jones who straight up lie for money. The Left ain't holy we all know that but if you can't see the grift the Right is running you aren't paying attention. They literally called an election that they know is legitimate stolen. They caused an insurrection. Please point me to the left version of citizens storming a federal building. Please show me where the left is making nooses and chanting to murder elected officials while right wing pundits try to lie and tell us that it was antifa. Please be honest bruh