I don't think Kaepernick's... I'll say activism (because this thread doesn't need politics inserted into it) is the biggest hindrance to him being signed anymore. How many seasons has he sat out?
(that being said, apparently there are many teams who still feel like his activism alone is enough to keep him off their roster, or keep them from offering a contract for what he thinks he is worth)
I'll always remember how he made Clay Matthews and the wisconsin team look silly.
But due to his absence from the game, I think he is past being a viable starting NFL QB.