Misunderstanding/intolerance often stems from overconfidence in one's own convictions and opinions of other people and things.
When people don't understand me, I try to learn more about the other person. One of two things happen.
1. They talk about themselves, they ask me about myself or I offer something about myself, we go back and forth.
2. They talk about themselves, I talk about myself, they talk about themselves some more and reveal a bloated ego, in which case I put on a grin and leave.
If someone just doesn't understand, then whatever. Bummer how life works out sometimes.