The pro side has failed to substantiate their side in their first argument, which will surely prove a fatal flaw in this debate. I, for one, will answer the question with I resounding no, homosexuals are not stupid as a whole. No group can possibly be labeled as stupid as a whole, since stupid is a matter of perspective and rarely, if ever, are all members of a group the same.
To answer my opponent's question, many men find pleasure in having their anus or prostate stimulated, or in the submission involved when bottoming.
Yes homosexuals find pleasure in having their anus stimulated, and that's exactly what makes them stupid. Your anus was not designed for sex, the purpose of an anus is to dispose of fecal matter from your body, not to receive a cock. An intelligent man will never find pleasure in having their arseholes tormented by another man's big penis . #SayNoToPenis
The argument that anuses are not meant to be used in sex is not susbstantiated, thus pushing the terrible arguments you are presenting further and further down the acceptability scale. Hands were not designed for the use of guns or forks, but we acquired guns and forks much more recently tha we wcquired hands. Does that mean that we shouldn't use forks or guns because the appedage which is mainly operates them was not designed for their use?
Can you explain and substantiate (empirically) how intelligence, the ability to acquire knowledge and skills (Oxford Dictionaries of English), relates to sexual preferences? Federico Garcia Lorca, Mark Gatiss, John Maynard Keynes, and many other people are quite intelligent, yet gay or bisexual.