While I find the orientation questions odd for a Disney survey, there are more and more travel companies advertisinfg to the gay travel market. There ae gay cruises from the major cruise lines, along with other specialty cruises. Disney World had rainbow background photo spots during Gay Days this year in every park. It can be a profitable market. They want to know guest demographics for marketing, which helps them choose websites and publications they may want to post ads in. I mean, we really don't see much Disney marketing in Semior Citizen websites/publications, even though it is ofen Grandma and Grandpa that pay for the big family trips, so that may be a market they want to look into, as well. While in my case, I have little family left, I travel with friends and it is "Gay Uncle Chuck" that gets the
DVC Rooms and does the park and dining planning, and the grandparents that pay park tickets and meals, and everyone is on their own for transportation to/from when we do a big 10 to 16 person trip every few years. But some years, I go solo or travel with a smaller group to Disney for Gay Day. And the marketing doesn't even need to be specifically targetted but can be very subtle. Notice more and more commercials include scenes of extended multi- generation families, or scenes of kids with gay parents just having a good time at avarious theme parks or on cruises, or ordering groceries or just car shopping for a family car.
As others have said, if there are survey questions you are uncomfortable with, either skip those questions (if you can) or don't complete the survey. This seems to not have been a DVC survey, but a marketing survey for the resort.
If you want to address issues specifically about your resort stay, the thing to do is email guest services or member services.