Well as nice as that all sounds, Hillary wasn't speaking about "Star Trek" she was talking about specific legislation such as that pushed by TPP, which restricts nations from preventing corporations from shipping in migrants from Mexico and other desperate areas where people will practically be slaves just to get out.
"Open borders" has a different entailment when you bring in Clinton's conduct overseas in places like Libya, Syria, Haiti, all of which are full of people calling for her head.