What else is new? The leftists of the US have no influence on foreign policy. Throwing their vote away on an "alternative" which will, at most, get single percent results doesn't make the US leave the rest of the world alone. In fact, it draws votes away from the slightly less terrible party, which makes it a net loss. If you want the US to leave the rest of the world alone, the last thing you want is for leftists to vote third party.