Kaep is better than any back up QB outside Nick Foles. In terms of starters he's better than I offer: Tyrod Taylor, Alex Smith, Jameis Winston, Josh McCown, Sam Bradford, Blake Bortles, and Marcus Mariota. You can debate the likes of Joe Flacco and Ryan Tannheill.
I don't deny that his presence would draw attention but the issue of the slaughter of young black men by law enforcement isn't going away. There are enough black NFL stars on the BLM side of this issue to bring a halt to proceedings on any given Sunday.
The fact is that NFL owners are colluding against him for his political expressions and thereby denying him a right to his livelihood. It is not unlike Muhammad Ali's ban from boxing for refusing military service in the Vietnam war.