Change "Some" to "All major employers". I worked at a fortune 500 company in IT and all they hired were H1B employees over the past 15/20 years. The last raise we got that was above inflation and health insurance increases was before 2000. I left 2 years ago and after I left they fired almost everyone in the IT Dept I was in and replaced them with H1B.
So I hope this sticks. Plus remember, H1B people should make a fair wage too, all too often their salary is set by their contracting firm and is far far lower then what we got.