Let's say the RepubliQ take control of the House and the Senate. There are still several walls that will block off their fascist agenda:
1. Biden can and will veto any evil crap that reaches his desk.
2. The Democrats will deploy the filibuster in the Senate--the same tactic the RepubliQ have been using to block legislation.
3. The RepubliQ may have defectors in both the House and Senate, and since their margin will be small, that will kill much of their agenda. There are Republicans who, especially if Trumphole runs again, may decide to break away from the party of assholes.
4. Much legislation requires more than a simple majority to pass.
So don't worry, folks...the most likely outcome of the elections is gridlock.