Could you give some example of social/economic problems that religion cannot solve?
How could you say that (all) religions do not make sense? Have you examined every one of them to make that determination?
Why do you think certain rules are unnatural? Is it because it goes against ego?
Believe it or not, lobster and crabs are crustaceans and are a part of the arthropod family, which include caterpillars, cockroaches, and spiders!