Not just the religion degrees, but the degrees in English, Spanish, Philosophy, Art History, Sociology, Anthropology, Political Science, Music, etc. Many people have intellectual gifts in areas other than mathematics and science. What are you suggesting, that all universities should just close down all departments other than Math, Science, Engineering, and maybe Business? Just because you don’t like those other subjects? And what would you suggest we do with all that intellectual talent, if there are no universities to promote it? Perhaps you think that we should put all the budding Nobel and Pulitzer literary prize winners out picking up the litter on the sides of the highways for minimum wage? Is that how much respect you have for human intellect in areas outside of science and math?
In fact, the study of religion is quite useful even in a practical sense. My studies of Islam, for example, gave me more insight into modern political and social problems related to the rise of radical Islam. A government agency whose job is to deal with Near Eastern relations will need a few people who understand the religions of the Near East, and they won’t get that understanding from learning how to build bridges or how to purify some chemical to 99%.
The study of religion and philosophy would also have helped the Judge in the Dover Trial, since he clearly did not know that design arguments long predated the writing of the New Testament and hence can’t possibly be regarded as a fresh invention of American fundamentalists.
It’s also necessary to understand the religious and philosophical beliefs of the American Founders, since modern jurisprudence often makes judgments about the meaning of constitutional documents, and contextual knowledge is vital to avoid mechanical reading of the letter without understanding the spirit.
Similar arguments could of course be made for the study of English, Romance Languages, Latin, Greek, History, etc. An educated society is a better society. And education means more than knowing lots of math and science.
You’re also assuming that the only reason someone might choose the Arts subjects is that they can’t do science, but that’s not the case. I started out on a Science scholarship, and had to make a very difficult decision which of the two sides of my abilities – I was a top student in all academic subjects – I would cultivate by education. I decided to focus on the Arts, not because I couldn’t do the Sciences, but because my deepest questions were leaning that way.
Further, there are many Science/Engineering students who couldn’t do well in Arts subjects, so it would be wise not to paint Arts students as people not bright enough to do science. Rather, one should say that some people have gifts in some areas, and some in others, and that a rational society would encourage people to work in areas where they have gifts, and are more likely to be productive, than in areas where they have no gifts, and are therefore less likely to be productive.