It would have been so disappointing otherwise.
This image, he said, should inspire all believers to make a commitment to defend the “vital and energizing” vocation of marriage and to protect the sacred union that God willed for men and women.
You do understand that he is re-affirming the RCC's opposition to LGBT equality, specifically to the legalization of same sex marriage. That is not a question. That is a statement of fact.
The question is why are you defending this?
As far as the subjugation of women is concerned, any institution that opposes access to birth control is an institution that is promoting the subjugation of women. But you do understand that too. So again, why are you defending this misogynistic crap?