It could be a Christian or Muslim that left a homophobic church/religious setting but still holds onto their views or a racist agnostic because they only heard what their own race told them and rarely interacted with other races?

Since we are about accepting those who are different from us and respecting their opinions, but at the same time, giving room to debate their ideas and accept the possibility we could be wrong, what would be a ideal way a Unitarian Universalist would approach the person about their views?