Just one small point. He never mentioned same-sex marriage. He talked about same-sex civil unions.
Same thing, except not performed by an ordained official of the RCC. The difference is minuscule. Its true purpose is to gather as many gullible people into the RCC flock as possible.
Remember: Salvation in the RCC has nothing to do with surrender to or acceptance of Jesus Christ into one's heart. It has everything to do with membership. Excommunication, for instance, is considered a sentence to hell-fire not because someone has rejected Christ but because for one reason or another the relationship with the RCC has been terminated. None of this is Biblical of course, but nobody seems to care. The Pope is God and submission to him is salvation according to RCC unBiblical doctrine.(*)
Because the post-protestant church has accepted much of RCC theology, the idea of membership is nearly as extreme among those churches as well. Failure to attend church regularly, for instance, is determined to be evidence of a backslidden mind and puts the person in question at risk of hell-fire. This is basically the same as Roman doctrine, but without the stigma of excommunication.
Same sex anything is forbidden according to old testament & new testament writings.
"
Do not be deceived: Neither the sexually immoral nor idolaters nor adulterers nor men who have sex with men" - 1 Cor. 6:9
You shall not lie with a male as with a woman; it is an abomination. - Leviticus 18:20
Nothing has changed except RCC attempts to ensnare sinners in its web of deceit.
that's me, hollering from the choir loft...
(*)
"The Pope and God are the same, so he has all power in heaven and earth."
Barclay Cap. XXVII, p. 218. Cities Petrus Bertrandus, Pius V.