If violating the US Constitution was sufficient grounds to get an office holder removed there wouldn’t be enough of them left to field a high school marching band. Reference to the 10th amendment ought to depopulate at least half the entire federal government, and the Commerce Clause combined with the 14th would surely gather up most of what remains. I’m also no fan of the 17th, it reduced state legislatures to the status of handmaidens of the federal government rather than its masters.
Supreme Court Justices can be impeached and removed from office by Congress based on their determination of bad behavior. The Constitution is the Constitution. You appear to be correct, however, that no one in our government except for President Trump actually defends the Constitution.
But that does not mean we should just give up. We should still write or email our Congressmen and women and make our demands known.