Any system dominated by a single party with no real checks and balances will inevitably becomes thoroughly corrupt. Having the theoretical option to vote for so

Any system dominated by a single party with no real checks and balances will inevitably becomes thoroughly corrupt. Having the theoretical option to vote for someone else hardly changes that if there is no credible competition. > Your point may be valid for heavily gerrymandered states though Any FPTP system. Gerrymandering is just the icing on the cake.