[El Cid]

The reality is that he really isn't all that good.
He was great for around a couple of years, maybe a year and a half, but a lot of that was due to his rocket arm. He injured his shoulder, and maybe that made him a bit tentative (or maybe he really couldn't zip his throws any longer), so he truly became a one dimensional liability.
He got away with not being able to read defenses, due to his rocket arm, and his ability to run, but after his arm became a bit mushy - he really was more of a liability. One person noted that Kaepernick also would not be a useful backup, because he ran around so much, it would mess with the minds of the offensive line. So he really wouldn't be a good backup, unless it was for a starting quarterback who was also a scramble monkey.

People look at his two great years (I actually thought he had the potential to be a Hall of Famer), and ignore the fact that the post injury Kaepernick really wasn't very good. And that's not counting the fact that he hates the Country and would generally be locker room and box office poison. But just based on the football skills - that ship has long sailed (and I'm not even taking account for is age - I'm just looking at the quality of his play right after his Superbowl appearance).

[abigkahuna]

And if anyone cares to remember—Kapernick was benched....no one was paying attention to him. He took to the knee then and no one cares—only when he said it was for X cause—did the attention flow his way—it still didn’t fix his inability to read defenses—He had a knack for scrambling because he took forever to find a receiver—then he would throw an interception. I am a long long time Niners fan and Kapernick carried the team to the Super Bowl after taking over mid season—and then promptly lost it. What a Putz...No Niner loses a Super Bowl—ask Joe or Steve...