James Brown was iconic so it's ok. Plus it was a different time.
A lot of artists have done drugs. Hurting yourself with drugs is not the same thing as beating someone to a pulp. Note that I'm not speaking against Chris, but I think your post is a bit flawed.
I think she's more mad at the fact that people are encouraging someone who did something so horrible by having him perform at the Grammy's twice and also handing him a Grammy.
She also grow up in a house where they would take in abused women and their children, so I'm sure she feels a certain way about this issue and doesn't take it lightly (which I'm sure she feels everyone is doing).
At them acting like people should not comment on the incident just cause they were not involved, this is much more than he beating her and her forgiving him, it's a social issue.
Dear, she's currently the Queen of Country Music and one-half of the most famous country couples since Faith Hill and Tim McGraw. She's arguably more relevant than CB is.
Go Miranda. You tell that spoiled, entitled little cretin what's what.