Basically Gerson traces how both the Pro-Life movement and the Gay Rights movement have progressed and become more mainstream.
But so far the gay rights movement has succeeded for many of the same reasons that the pro-life movement (to a lesser extent) has succeeded. Both have taken sometimes abstract, theoretical arguments and humanized them. Both have moved away from extreme-sounding moralism (or anti-moralism) and placed their cause in the context of civil rights progress. Whatever your view on the application of these arguments, this is the way social movements advance in America.It's an interesting article, and worth considering.