More generally, there is always nearby the temptation to definitionally exclude one's political opponents from serious discussion by the lazy insinuation that they don't really believe what they say they believe, that their side is more opportunistic and cynical than yours, and that, therefore, what work even needs to be done to argue the point? After all, there are only two staked-out positions: those who agree with me already and those who are lying about their motives!
Try to resist this. It goes nowhere. It leads to nothing. And I assure you that, whatever the issue, there really are people who see it differently than you. I know that can be hard to accept, but it's almost always true.