Naming the three most recent presidents and denying that any of them did or could change things was meant as a direct counter to my claim that it matters who we elect. I replied by pointing out that "who we elect" isn't limited to the presidency.
It is entirely useless for you to quote each of us without clarifying what you've misinterpreted.
Your response: I think your knee-jerk focus on who the president is (and denying the possibility of change) demonstrates what I was saying: the rhetoric has convinced people that it doesn't matter and it's all some national team sport.