Opposition to homosexuality as a protected class like race does not squelch equality. Race is a physical trait. Homosexuality is not. Inconsistent arguments test our patience. Opposition to gay marriage is not homophobic.
Marriage is more than insurance and pension benefits.
It has been, in this era and all that came before, a union between man and woman for purposes of procreation and protection of progeny. Parental rights confusion in homosexual unions alone should give pause. The role of government is not one of dictating relationships. However, it is the role of government to provide legal protection for those relationships that further society's best interests. Maligning heterosexual marriage does little to advance discussion.