Innovation is why american salaries in tech are so high. They funded trillion dollar companies.

If that becomes so much of a commodity that some other countries can do it for pennies on the dime, then yes. Salaries will deflate. But we sure aren't offshoring (nor using most H1bs) to see more innovation. Quite the opposite.

Tech isn't manufacturing where the biggest supply line wins by default. That's why I'm not holding my breath that the US isn't going to be outcompeted on talent anytime soon. Of anything, its own greed will consume it.