Rubio's process was written as a bill that passed the Senate 68-32 with 14 Reps including Rubio voting for it. Trump is a private citizen who made an off the cuff remark that is not contained in his immigration position paper. Can you provide me with the details of Trump's "expedited process" beyond they must come back in legally? I'll save you the time, there is no such process.
You've nailed it. There's a whole lot of Trump's bluster that is just sweeping generalizations. People then read into it what they want. It sort of reminds me of how Obama won.