I've already retorted great deal on "why I think that way" about gay marriage in this forum, so I'm not going to go over everything again.
no, it hasn't fully wrecked my life, but it IS a rather large part in the further blurring of many lines.
it's similar to a game of chess, (in general) it's not about the rook (or whatever piece) taking out your king, it's about all the moves that lead up to it.
instant gratification; lust, anger, greed, etc.
very few times is this harmless because it takes focus off the big picture & can often lead to a type of addiction depending on the circumstance.
now if you are surrounded by addicts who say you don't have a problem, are you still an addict. yes!
we are all addicts in some capacity, what makes the difference is acknowledging it & striving to better ourselves rather than accepting it & forcing society to do the same.
I hope this clears it up for you