I never said that Cam was doomed to be injured. I was simply highlighting the fact that dual threat QBs tend to not be very durable over the course of their careers. And you tried to refute that claim by pointing out someone who has not even been a starter for two seasons yet.
And you pointed to Culpepper who missed 7 games over his first five seasons starting in the league. Which was less games than Jake missed in his first five years in the league starting for us. And he surely was not mobile and a dual threat. I could name you a plethera of other quarterbacks who were not dual threats who didn't last that long in the league either.
The point is that injuries happen to all quarterbacks at some point. Being a dual threat guy doesn't necessarily make it more likely or shorten your career quicker. Just as many guys have significant injuries from being sacked in the pocket as they do being hit while they are running.