It's already been pointed out that the accusations of Thomas breaking the law are false for multiple reasons, not the least being that judicial independence limits the ability of Congress to interfere with the coequal branch of government.
If Congress wants to impeach a justice, they're welcome to do so. But that's really their only way of policing the Court.
Any other effort to influence the Court threatens judicial independence.
We have to take the bad along with the good of having an independent judiciary.