There's nothing he could do that you wouldn't call brilliant. Even if he tanked the entire economy you'd say it was just a brilliant negotiating technique. Or a great way to reduce inflation.
This back and forth is not good for the market. Market fluctuations don't just affect rich people, they affect investment which affects economic growth which affects jobs. No one's going to build factories here if they don't know what our economic policy is going to be from one week to the next.
He's using a hatchet where a scalpel would work much better.
Scalpel? Have you not been paying attention since 2016? He doesn’t work that way. He’s a bull in a china shop, which is exactly what this country needs. It seems like you need a bull too.