Oh noes, the Coptic Orthodox Church did what?!
https://en.wikipedia.org/wiki/Coptic_Orthodox_Church
Also, blessing, not endorsement. Catholic dogma does not endorse same sex marriage. Love the sinner, hate the sin, you may have run across this idea in your spewing of bible quotes.
Alrighty then... I'm sorry that you feel the need to show that your sect is more better than the one true Catholic Church established by Jesus through Saint Peter. I'll pray for you to see that works and actions, not bible quotes and insults to alternative methods of worship, are the true path to salvation.