Jeez dude, why didn't I think of that....
Did you read the bit about national security and economic protectionism?.....You know, all these factors need considering not just costs and profit margins.....Did you take in the reality of the US not competing without having high tech jobs being centred in America?
Also, you do realise, do you not, that America already has tech companies with high investment in America already? Maybe you have heard of Silcon Valley? There is significant tech manufacturing already being done in the US.
This is about not falling behind to China in important areas....currently the US aren't competing anywhere nearly hard enough despite having several advantages.