They were confirmed by Congress by a majority.
The Chief Justice of the Supreme Court has said that the idea of removing judges because you don't like the judgement is completely unconstitutional and moronic.
There is a process, use the process, or follow the laws.
Biden tried multiple times to eliminate student loans repayment. I completely disagree with the idea, and the courts did as well. They had to go back and try other methods to rise to what the court deemed as legal. That's how the process is supposed to work.