@johnzajac I mean, I understand the impulse, but how, exactly? To do what you say, their choices are:
a) Pack the court. Great, except the other side will do it too when they next get in, and in three elections' time there will be twenty or thirty justices.
b) Get an amendment through. Not bloody likely when a third to a half of the country is cheering this court on for doing all the things they couldn't achieve democratically.
c) Rip up the constitution and throw existing justices out. This triggers civil war.
Only other option is to live with it.