As an absolute leftist, I think you're overstating the effects of gerrymandering. State gerrymandering cannot win statewide seats, nor the electoral college.
Anti-voting regulations, while frankly absolutely despicable, I've not yet seen any studies regarding a significant effect. Do you have any data on that?
Getting the most votes isn't what translates to forming a government in the US. The big things are: having your family members run state governments, setting district lines, and setting up laws to prevent people that disagree with you from voting. Not to mention just having a lot of money to bribe already elected politicians.