The SCOTUS has swung back and forth between liberal and conservative “control” through history.
The Republic has survived such swings. It will continue to survive.
I hear that Kavanaugh already has laws drawn up that will legalize the execution of all registered Democrats and anyone suspected of voting Democrat. I also hear that Führer Biff J. Hitler has asked him to legally change his name to Reichsführer SS Brett Luitpold Himmler for nostalgia sake. That's all pretty weird since the Russians got Führer Biff elected.