It's hard to believe passionately in an issue that almost nobody cares about, and when those that do care usually disagree with you. But life is hard, so here I am: a passionate believer in letting more high-skilled workers immigrate to the United States.
There's really no natural constituency for high-skilled immigration. The potential immigrants themselves aren't in the country yet. High-skilled Americans are afraid that high-skilled immigrants will take their jobs and depress wages (though the evidence disputes this). And, of course, low-skilled Americans don't even have the issue on their radar.
The closest thing to a constituency for high-skilled immigration is Silicon Valley, because tech companies naturally want plentiful, cheap high-skilled employees. And Silicon Valley has done an admirable job of lobbying for increasing the number of H-1B visas, even if it lost the fight this time around.