The cases you cite seem fundamentally different from the anti-gay laws under discussion. Copyright and patent laws, even if we look back and say they were stupi

The cases you cite seem fundamentally different from the anti-gay laws under discussion. Copyright and patent laws, even if we look back and say they were stupid, we would still be able to point to the problems that they were designed to solve (of which they have solved somewhat), and view them as a reasonable attempt. Similarly, we would recognize that humans driving cars was okay not because of of a poor moral system, but rather because we had no better alternative. I suspect that some of the areas we will look back on in a similar way are drug laws and sex laws (we still have prostitution, child porn, and statutory rape, all of which seem immoral only in a cultural sense).