In other words, give labor the same mobility as capital. Nothing inherently unreasonable about that.

Note they say “to seek employment” and “without restrictive border controls”, not “for any purpose” and “without border controls”. This does not mean they’re advocating to let in convicted murderers or people who just want to migrate for welfare benefits. Calling it “open borders” is an exaggeration in absolute terms, though it is for sure accurate as a relative comparison to what we have now.

Also, their political party, as such, is the Democrats. DSA is not a political party. But yeah they are members of DSA as well as being Democrats.