You opinion of "sexual preferences" aside, it's a statement about "equal rights" and that everyone should have 'em, not about "sexual preferences" and that everyone should be able to have sex with whom or whatever they want. Of course, he's talking about real "rights" and neither marriage nor sex is a "right" and neither should have anything to do with the government.
Every American deserves equal rights, even homosexuals.
and that everyone should be able to have sex with whom or whatever they want.
Absolutely correct. Every American does deserve equal rights. Being a conservative should not mean being a bigot.