Only the most unapologetic biblical fundamentalists for instance take every biblical injunction literally. If we all took all scripture at the same level of authority then we would be more open to slavery to the subjugation of women to wider use of stoning. Jesus himself spoke out frequently against divorce in the strongest of terms.

The problem for those who assert biblical authority in support of traditional definitions of marriage is that one could with equal validity assert that the lending of money or certain kinds of haircuts are forbidden by God or that slavery and the subjugation of women are authorized by the Lord.

Education is indoctrination if you're white - subjugation if you're black.