Thomas is not the supreme court. And he’s starting to alienate himself from even the other conservative justices. He’s on an island and I doubt the others would follow his lead if this reaches SCOTUS on appeal.
None of them went out of their way to distance themselves from his comments, either. They didn't offer any kind of dissenting opinon. They didn't speak out against his advisory opinion, which is supposed to be against SC norms. And they haven't spoken out since. And given their rulings since gaining the supermajority, along with their "nuke it and everything close to it" approach to ruling on matters, and there's no reason to believe they wouldn't gladly just go along with whatever Clarence Thomas says, or at the very least, not care enough to vote against him.
This isn't even the first time he gave an advisory opinion. Remember the literal list of cases he said he wanted to review and overturn? He wouldn't be so brazenly and openly giving these literal roadmaps of what cases to bring before them if he didn't believe he had at least four more votes. And none of them have given us any reason to believe otherwise.