I think you are missing the point, we all agree that is deplorable behavior.
While we're at it, let's mention that FDR was a chain-smoking cripple who was married to an active lesbian, and he died with his mistress at his bedside, whereas Hitler was an animal-loving vegetarian who married his girlfriend. Picasso was a pervert, Hunter S. Thompson was a bully with a penchant for drugs, booze, and all sorts of thrills....
See where I'm going with this?? Nobody is arguing wife-beating is anything but bad. When I said he was a lover of humanity, the man was. End of story. When the Black Panthers told him to write an anti-white song, he said "I'll write a pro-black song." Which was "Say it Loud...I'm Black and I'm Proud.
What did he get in return? The Black Panthers blew up his apartment.
Sucks that he was a wife abuser, but his actions were far from abnormal for the time. Ray Charles, aforementioned Ike Turner, Jackson Browne, the list goes on and on. Terrible, but true.