Yes. The inevitable defeatism that will show up in these comments is

"Oh, but China will do it anyway, so there's no point."

Which is pretty easily counterable:

1) We don't know if China would cooperate with a ban. We haven't tried. China is very complicated, and if you think you can predict what Xi will do, you are wrong.

2) If AI is truly a global existential and moral crisis, the US _could_ absolutely shut down China's AI research capabilities. There are a few avenues here, some less pleasant than others. Think outside the box.