True, but they are also the ones who decide what they can and cannot do without recourse from anyone else (because we need 2/3 of Congress to impeach which is a non-starter.) so they can rule one way and then rule another for whatever reason they want.
Our “justices” (/vomit…) don’t have to have any qualifications, we just pay lip service to norms so we (read: the federalist society) choose vaguely “acceptable” people to be justices, but you or I could be one too which really means that they have almost nothing to do with the actual law. We’re a fucking joke.