I don't see this as a civil rights issue, more like a moral wrong issue. The only real hate in this situation is what was exhibited by the gay couple demanding this Baker cater a function that totally goes against his conscience.
Being gay isn't a choice, being black isn't a choice. How is it NOT a civil rights issue? How is it not rooted in hate when the basis for the discrimination is a book that says to kill gay people?
Unless, of course, you think being gay IS a choice, which means all you need is to meet the right guy.