This to me is a solid argument as to why they should ban it. US has a monopoly on this tech and it should stay that way.

If what they are planning on building is as important as they say any edge US can get it should take.

Having a large number of individuals who are not loyal to the country that provides this opportunity is a future threat the moment an advesary cuts a check.

If this is the nuclear bomb of our age would you want a large number of foreigners building it for you? If this action sticks I imagine every country will follow the same path and treat top AI scientist much like a top nuclear engineer.

They're not loyal to the country because the country has a history of not respecting people's loyalty.

It isn't about the money, it's about how Americans continue to demonize immigrants and have a tendency of treating people from certain countries as subversives even when they do show their loyalty.

These people are already here, doing research and propping up America's technological edge instead of their home country's. Driving away the people giving you your tech edge, in the name of protecting your tech edge, is obviously incredibly stupid.