I don't think the pro or anti immigration sides like the h1b as implemented. The anti immigration side obviously wants to limit immigration, but the pro side do

I don't think the pro or anti immigration sides like the h1b as implemented. The anti immigration side obviously wants to limit immigration, but the pro side doesn't like the h1b system because it currently turns the h1b holders into a form of indentured servant. The only ones who truly benefit from the h1b are companies using it to get cheap labor that can't leave. The h1b holders themselves might be getting a small benefit if the situation is better than at home, but they are not getting nearly the same value as if they were allowed to actually shop around