Well, I guess as a non-US citizen I have no control or influence on US immigration policy. I think it hurts both the US as a whole as well as the individuals in

Well, I guess as a non-US citizen I have no control or influence on US immigration policy. I think it hurts both the US as a whole as well as the individuals involved. Cross pollination is incredibly important though. I've seen it in my personal experiences. Taking back Silicon Valley and other big company experience and operational knowledge back to their home countries and then applying it there is a massive benefit to their home countries's competitiveness.