That is the same kind of thing people have been saying since the day he rode the escalator down. Ten years later, why does this argument still get made? Trump has power for one reason, and one reason only -- because enough voters love him. Many people on the conservative side loathe him and want nothing more than to see him gone, but they kiss his ass and fawn over him anyway, because why? The voters love him, and hate anyone who does not kiss the ring. Over and over and over this plays out.
If Trump wants to stay in office after this term is finished, all that matters are what the voters think. The supreme court will likely side with him and find an interpretation of the constitution that makes it work. But even if they don't, so what? The court doesn't have an army. Even if they did, if the voters want a king, that is what they will get. The republic is a reflection of our collective will and we can destroy it if we so choose.