Yes, they export a lot, but this would only be to one country. The US is likely their biggest trade partner by a large margin, but they could still trade with 176 other countries.

You say that like they aren’t already. Are those 176 other nations prepared to make up the slack that the US isn’t buying?

It will hurt them but not cripple them.

This was, in fact, what I said. That it would hurt them. People seem to be reading some fan-fiction version of what I said that involves the US destroying China or something.