What Clarence Thomas is saying is that these decisions shouldn't have been made by the supreme court, not that these things shouldn't be allowed. In his view these decisions require the legislative branch to rule on, not nine lifetime appointed judges. I'm not sure I entirely agree that the constitution has zero room for implied rights, but that's where I think he's coming from.
Edit: the Crux of the issue is that the supreme court can just as easily make bad rulings as they can good ones. To pick an admittedly dated but relevant example, the supreme court once ruled that black people are property and must be returned to their "owner", regardless of the laws of the state they were currently in.
Or we could just say "supreme court justice hates minorities and gay people and wants to make his own (interracial) marriage illegal." Who needs nuance?
Edit: the Crux of the issue is that the supreme court can just as easily make bad rulings as they can good ones. To pick an admittedly dated but relevant example, the supreme court once ruled that black people are property and must be returned to their "owner", regardless of the laws of the state they were currently in.
Or we could just say "supreme court justice hates minorities and gay people and wants to make his own (interracial) marriage illegal." Who needs nuance?