Yes, I said he's worse. First line, first paragraph.
Do you understand political power though? It's a deep game but even at the highest levels, you can see that just being "bad" or "good" isn't enough to shape policy and leadership. A president has a job to do, and that job is almost entirely negotiating political favors between various groups and committees and lobbyists. To be able to do this, you have to have both a shrewd understanding of political law and precedent, AND you need political capital.
Donald Trump has very little understanding of political law and precedent, but he has MASSIVE political capital.
Vance has none. Just like Stephen Miller, someone who is also literally a sack of insects in human skin, someone like him even being as close to the president as he is, he has no political capital. He would never get elevated to an electoral position so he had to worm his way to an advisor status.
They could do some harm, but all their attempts at passing policy without political capital will get shot down in the other branches of government. There are a lot of examples of this in history, even recently with presidents who had waning capital like Biden. If you aren't actively gaming the game, you're getting left behind.