I don't think this will have that much of an impact (of course, it'll impact a good number of people). The highest impact would be if they allowed easy H1B tra

I don't think this will have that much of an impact (of course, it'll impact a good number of people). The highest impact would be if they allowed easy H1B transfer to other companies with similar jobs. Right now, H1B is pretty much like indentured servitude (it has become better in the past few years, and it was waaay worse at one time). The other change would be to give priority based on salary. That will encourage H1B employers to pay more; thus, attracting more USCs.