Oh yeah, I mean I think we have to understand that open borders are something that have to come with comprehensive immigration reform, as nebulous a term as that is. Just saying "Open borders" isn't a policy and I don't think it should be the United States's. We absolutely need regulation in place to keep people from being paid such low wages (among other things), but in my mind the solution is to have that regulation, not to try to keep immigrants out altogether.
In general though, you're right that we do need to recognize the extent to which "free movement of labor" can become a capitalist tool. That said, I strongly believe that with more effective regulation we can keep that basic freedom from being exploited by the rich.
(Bernie Sanders and Paul Krugman don't speak for all of us left-of-center Jews though.
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