A benefit of those same restrictions means TSMC is building foundries in the US for a change.
GaAs sensors are awesome. Combine those chips with ML optimized compute on a silicon interposer and drone warfare gets a hockey stick in adoption.
As civilians we get functional self driving cars via trickle down.
If the US government wants to encourage domestic chip production, it has other ways to incentivize that.
And like sister comment says, ITAR is not about industrial or economic policy. It’s about maintaining a qualitative edge in weaponry. How is there a qualitative edge when you can buy the restricted components freely from China?
Just noticed the other comment on GP saying they’re restricted through a different list (EAR). It serves the same purpose so I’m leaving my response as is.