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).
He does not compare gay marriage with other traditional marriages.
He does not have an opinion on the effect of permitting gay marriage.
The crowd gathers underneath the large tent.
The man is relaxing on the beach.
The film depicts the cowardice and disappointment.
Two men are sleeping on the job.
He appeared.
The dog was in the water getting wet.