1] Most questions are easier to understand, and can be presented via writing.
2] I THOUGHT I was being FUNNY. You make it seem as if I was wrong to think that. OK. I been wrong before!
3] There is ample evidence in this world that the majority of persons are wrong about something, and cannot or will not change their mind: For example, anyone who is religious, is not easily converted to a different religion. Anyone who is not religious, is not easily convinced to become religious. Anyone who is religious, is not easily convinced to question those beliefs. I could say the same about all political views. And we have not even gotten into art!
As a child, I was taught that a person has a right to pursue their own ignorant belief, as long as it does not affect others.
Perhaps your best hope is to work to convince him to try it for YOU.
Still I think, most politicians, hear what they want to hear, and say what they want to say!