While many teams in the league don't share the same philosophies on everything, they go along with the others for the greater good (and profits) for the league.
But nearly all of them are extremely adverse to distractions, drama and unwanted attention.

Kaepernick is a lightning rod for drama and distraction.
Antonio Brown is another.

There's no question Kaepernick is likely better than some of the backups in the league, but no one wants to put up with his szchit - or take any from his girlfriend.

[Linked Image from i.imgur.com]

WWP53D