From news I was reading they are going to start working with Chinese banking system with their own credit cards, and they are totally separate from swift and mastercard/visa.
Nobody is talking about banning China because they can't, and CZ is from that same country.
I believe, don't take all the tweets or statements of CZ seriously.
Because some of them are just like spur-of-the-moment type statements.
But at the end of the day, he is a businessman, so what he will do is to protect and secure his business.
When they list SHIB, I also think they are breaking their high standard of listing projects.
But if you look at it, it is all just business.