Some of them actually do that. Like when the US expelled Qian Xuesen, the founder of the Jet Propulsion Lab and he went back and built China's ballistic missile and space program. So, yep. It's happened and will continue to happen to different degrees.
I agree with you. We don't even have to imagine: the UK and US were planning preemptive nuclear strikes against the entire Soviet Union before they tested their first nuke.
Operation Dropshot and Unthinkable called for hundreds of nukes and conventional bombs to be dropped on Soviet cities to, "to impose upon Russia the will of the United States and the British Empire."
All in all, I don't even have a dog in the fight, but people like Qian Xuesen won't become retarded if they're expelled from the US. If I remember correctly, something like a third of all top-tier AI researchers are Chinese. If you count all those with an immigration background, they'll be close to 50-70%. They will simply create companies and products that compete and take market share from American companies.
Are Americans - the country that votes out presidents for rising gas prices - willing to make do with a lower standard of living? Because that'd what you'll get when some the world's best innovators are no longer based in your country.
> They will simply create companies and products that compete and take market share from American companies.
Trade and innovation benefits all of mankind. A rising tide lifts all ships. Having multiple countries becoming successful instead of the US simply monopolizing talent would benefit the world.
> Glad Qian Xuesen helped China improve their missile innovation.
Nuclear Deterrence should be spread far and wide so no one bad actor can get into power and bully others.
