How exactly will the army or our military stop them anyway?
They will not be given orders to shoot, so what do we do? Catch them and what? Send them back, but we all know the lawyers will go judge shopping and the judges will halt them going back.
If there were 10 people banging on your door and breaking your windows to get into your house, would you merely sit on your couch eating cheetos? Oh, can’t defend your family by shooting them. Oh, no, that just wouldn’t be fair.