True but that takes a supermajority of the senate to impeach judges which we aren't likely to have for some time. Or it takes a conservative President which we don't have. And at the state level it requires conservative state governors and state congressmen and voters. And even if you do that, they still aren't going to be very willing to interfere with elections. Especially not when election officers are saying everything is fine.
Trump made a lot of progress on the judiciary. But progress is now in reverse. And the more immediate solution is better election laws now. We have a better likelihood of passing better election laws that make it harder to cheat and easier to catch cheaters than cleansing the judiciary.
Better election laws, like the existing election laws, will simply be ignored by Demonicrats, knowing that, if it ever gets to court, corrupt judges will overturn (or redefine) the election laws to the benefit of the Demonicrats.