Most Leftist agree with ‘passports’ cause 1) the Constitution is meaningless to them, 2) personal freedom of rights, etc. are obstacles to their agenda, and 3) these are the same folks that would have applauded Hitler and the Nazi Regime’s use of ‘passports’, etc.
So you don’t have a driver’s license and auto liability insurance either? Because the US constitution does not require those and it is an infringement on our freedoms!