Their marriage is none of my business and I don’t care what celebrities say or think about each other. But there’s little doubt that Mel Gibson is quite willing to drop racial slurs in his angry rants (which I’m sure he will be most sorry about, most apologetic, and “regret if his comments offended anyone”.
They’re people, they screw up just like the rest of us. Just stop putting them on pedestals and expecting we ought to care what they say or think - about anything. Mel Gibson is no better than any other jerk who calls his wife filthy names and refers to N-words raping her. Why should he be?
Everyday be sure to thank God that you are not bi-polar.