 This proposal raises other problems, however.. Recall race and sexual orientation. A person with light-colored skin cannot work in even relatively moderate sun all day without getting a sunburn. Someone with exclusively same-sex orientation cannot have procreative sex with someone for whom they have romantic and sexual feelings. These are inabilities explained by bodily difference, not by attitudes, and they are not insignificant or trivial ones: yet it seems they are not disabilities, not even a little bit.