Why are churches so racially segregated when the muslims place of worship have various races?

you know, black church, white church, latino churches. I've seen people from white to asian to african in the muslims place of worship all united praying to the same GOD. why is this? Maybe churches across america can learn a lot from the muslims, instead of judging them all as savage terrorist.(not that all christians do that, but a lot do.