This is one of those subjects that I try to be sensitive about... feelings (naturally) range from "It's an unholy abomination and I will not have my children look at two men holding hands!" to "Gay days. Meh." to "Isn't a celebration of diversity wonderful!"
Me personally, I'm secure enough in my heterosexuality to just not care. I firmly believe that a person's sexual preference should only be of concern to me if I'm interested in dating them. And as I indicated above, I personally found the guests participating in Gay Days to be, if anything, more polite, intelligent and reserved than most. I would have no issues bringing my family or friends to the park on those days.
BTW, if anyone is interested or cares, here's Disney's Official Position on Gay Days:
What is generating some controversy is Disney's recent announcement that travel agents who book Disney vacations during the month of March will have a chance to win a night in Cinderella Castle. The catch: The night reserved for this prize is June 2, 2007: "Gay Day" at the Magic Kingdom (meaning the Castle stay prize will NOT be randomly awarded that day). Some folks are claiming that Disney is trying to exclude gays from the promotion. Me personally, I don't see it that way... If they announced that the prize would be awarded anywhere BUT the MK on 6/2, that would indeed be fishy, but such is not the case.