"H-1B is just indentured slavery"
Yes, and
I don't trust that anyone who says that actually cares about improving conditions. If they did they would have a much deeper understanding of how this works and how to fix it. (Bipartisan immigration reform and more legal support for immigrants) They just want to feel better about why they oppose it from a 'left' / humanist position vs 'they are just shit faced racists'