Now for a lesson everyone can learn in real time about differing opinions, in a hypothetical setting:
I disagree with your first argument (opinion with support [Homesexuality in men is good.]), because of the homosexual phenomenon known as the "Teddy Bear Gay." These big, cuddly, cockblocks force their way in between you and a potential mate, and forewarn women of my potentially deviant nature because my Y chromosome isn't written in cursive, and am therefore incapable of real emotional connection with you [women].
However, I do agree with your second argument (opinion with support [Homosexuality in women is good.]) and I therefore do not need to expand upon the argument given.
Notice everyone, that I never said that he was wrong, nor did I ever say he was right, I simply disagreed and agreed on certain points. On my dissenting argument (the disagreement), I offered evidence, probably taken from a personal experience, to support my dissenting opinion.
I don't quite understand why this has taken 4 pages to explain, because it seems like quite a simple thing to answer, opinions, by several stated definitions, are unprovable, therefore not right or wrong. Understanding the structure of a true argument (opinion with support) is what is being debated upon, and for that to truly come to fruition, takes a mastery of the English language to a point to know when some phrases are erroneous.