It isn't, and should be available to all gay couples
Being gay is wrong, so they can't get married
The sanctity of marriage. No, I wasn't laughing. I was coughing. *cough* ... see?
It will set a bad example for Christian youth
I don't honestly have a good reason, but I still say no
Other (please explain)
A man can do something a woman can't do, marry a woman.
A woman can do something a man can't do, marry a man
Saying "They can marry the opposite sex" doesn't work in regards to EPC. If it was the case, one could suggest constitutionally a law stating that one can marry someone of the same race only would be legal because every race has the same ability as any other race, the chance to marry their own race. However, that is not constitutional either under EPC.
You're attempting to use ambiguous terminology with regards to the "opposite sex" as a means of attempting to obfuscate the reality, which is that men and women can each do something under the law that the law prevents the other sex from doing.
"I am appalled that somebody who is the nominee...would take that kind of position"
"A court took away a presidency"
"...the brother of a man running for president was the governor of the state..."
It's horrifying because Trump is blunt instead of making overt implications.
The best argument against democracy is a five-minute conversation with the average voter.
An appeaser is one who feeds a crocodile, hoping it will eat him last.
Blacks and whites had equal access to schools and had the same race based restrictions on which schools they could attend.
Men and women have equal access to marriage and have the same opposite-sex based restrictions on who they can marry.