It has worried me for years why salaries for tech employees in, say, India, don't equalize with US salaries. It seems like there is something artificial prevent

It has worried me for years why salaries for tech employees in, say, India, don't equalize with US salaries. It seems like there is something artificial preventing it. But as long as the discrepancy exists, then it seems like there would be a tremendous benefit in allowing people to freely immigrate, even for those already at the destination. Fear of immigrants is based on the idea that they will work for less, but if it's still more than they were making, then the competitive situation for labor has improved, as long as one accepts that it is a global market. I wish there was a way to get political traction for this, as a self-interested goal for American (or other developed country) workers.