I was well-aware of what he was driving at, but the justification for discrimination based on sexual proclivities is completely justified dependent upon particular proclivity. There is no justification for discrimination based on ethnicity.
Co-opting the Civil Rights struggle to highlight homosexuals' desire to change the definition of marriage is plain disingenuous.
Yes, based on particular proclivities, like pedophilia or bestiality, not homosexuality. And again, there's no need coopting- gays have the Holocaust, Stonewall, and years of their own discrimination that warrant a look on their own.