I'm only being a little bit facetious when I say that if Kaep really wanted to play again, he could smack his girlfriend around a bit, get arrested on weapons charges, or abuse some animals and he'd be let right back in.
Exactly. Unless he does it on video (ala Ray Rice). The Cowboys and Bengals have hired the scum of the Earth, with the league's blessing, but suddenly they're concerned about fan reaction? Sorry, no.
Joe Mixon hit a girl on video and has a job.
Maybe there's some reason why Adrian Peterson has a job and Ray Rice does not. Maybe there's some reason why Greg Hardy could get a job 2 years ago and not now.