Something I don't understand

Jerry Falwell and his cohorts can damn America for allowing teh gays to exist, going so far as to call natural disaster upon the land -- calling for the destruction of the country. The most that happens is a roll of the eyes.

Jeremiah Wright says "God damn America" for its horrific treatment of blacks throughout its history, and the entire nation erupts in a fit.

I understand "God damn America" is the most blasphemous thing a person can say in this country (moreso than damning God himself, it seems), but most Americans seem perfectly comfortable with the concept, so long as the damning is based on their version of immorality.

But when a black preacher is calling out a nation for something that most people, even the most conservative, agree is plainly sinful -- the enslavement and continual discrimination against people of color in the country -- we all get our dainty fee-fees injured. Even the left seems to be largely in agreement that what Wright said was loathesome.

I don't get it.