That's a ridiculous argument. In fact, the exact REVERSE is true.
We are "obsessed" (as you put it) with one's BELIEFS, WORDS, AND ACTIONS, regardless of the skin color and sexual identity of the person. Why the fuck do you think we are so hard on idiots like Ben Carson and Clarence Thomas... or why the CNN correspondent erroneously thought Webb was white?
It's because the SHIT they endorse, ignore, and DEFEND is ideology that runs counter to ideas of inclusion, equality, compassion, and humanity.
It's because they support, ignore, or defend hate based ideology, like racial profiling, xenophobia, demonization of minorities and those of LGBTQ community... because they oppose a fair liveable wage while supporting cuts to family and child nutrition/assistance programs, voter suppression, denial of global warming and environmental concerns, anti consumer policies, the undermining of healthcare, and assistance to the needy...
... you know, the things YOU so-called CHRISTIANS are SUPPOSED to be concerned with.