I couldn't say that better myself. I have yet to meet someone I agree 100% with on 100% of the issues, and I doubt that I ever will.
It was a characteristic of Stalinist, Maoist and other totalitariain regimes to demand political correctness in all things. If a person violated the party line they would be subject to the gulag. When we start thinking that a person must agree with us or be subject to banishment then we are engaging in the same falacy of the left.
The most we can hope for is that those we disagree with on issues will be "enlightened" and eventually agree with us. Of course they may hope the same for us. There are some who are doctinaire totalitarians whom I totally disagree with and can find no common ground to engage in rational discourse but these are usually those who do not think at all or discuss. I also have my hot buttons.