It's cold outside, global warming must be a hoax.

Or maybe the idea of wage depression due to visa status is speculative and unqualified. Is there any data on this?

Tons, I linked a bunch of articles already, you could also Google it and find it if you were actually interested in learning something instead of making the point most ideologically aligned to your own preconceptions.

I am going to assume your comment lacks objectivity since I stated no opinion or expressed no ideology. I did find research from recent data, that links to additional supporting research, which completely dispels the false assumption that visa workers are paid peanuts:

https://www.glassdoor.com/research/h1b-workers/

> Another reason we shouldn’t be surprised that H1B workers are paid about the same as U.S. workers is because the law requires it.

You can look up H1B salaries online. Salaries seem pretty high to me. Now you may argue it may be even higher if they were forced to hire domestic workers only, but that's just conjecture. Like saying if Android wasn't available then cheap android users would switch to Apple devices.

why don't you try reading? It's all in TFA

http://www.sciencemag.org/careers/2015/05/economists-h-1b-vi...