Betwixt and Between

"Shhh . . . what you are about to read is politically incorrect.  Tafadhali, repeat only in whispers."

"Why are blacks Christians or Muslims? -- the people who enslaved them and tried to dehumanize them?" -- the white man asked the black man sitting next to him at the bar.  They were both drinking beer.
"I don't know any blacks who are Christians or Muslims," the black man said.
"They're all over the place singing gospels and shouting and kneeling on prayer rugs," the white man said.
"I consider Christianity a religion of Europeans -- whites -- it's totally white-oriented."
"And Islam?"
"It's an Arab religion.  Muslims take Arab identities.  Arabs don't identify as blacks.  But let me ask you a question.  Did blacks ever enslave other blacks or sell them to Arabs and Christians?"
"Today, in the 21st century, in parts of Afrika, they're still doing it."
"Why?"
"Why?"  For money."
"No.  They do it because their culture, or so-called culture, makes them stronger than those they capture and sell.  What's your religion?  Christianity or Islam?"
"I wouldn't be a Christian or a Muslim on my death-bed -- they've been slaughtering each other for centuries."
"By the way, what would you replace Christianity or Islam with in those billions of Christians and Muslims to help them  better control their savagery?"
"Well uh . . . m-m-m . . . uh . . . I see what you mean."