Text: While I see him claiming that permitting gay marriage is one more step along this path, I don't see him providing any argument that such unions are themselves bad or any worse than the other breakdowns of traditional marriage (such as interracial marriage, multiple divorces, prenuptial agreements, and so forth).
Entailment: He does not compare gay marriage with other traditional marriages.
Contradiction: He does not have an opinion on the effect of permitting gay marriage.