that percentage that are in college, as Retzlaff says in the video, there aren't a lot of them that try to play college football. Still, there are Jews at other positions on FBS teams, and there are presumably Jews playing QB and every other position in the three lower NCAA divisions, as well as the two NAIA divisions.
Jake himself is a devout Jew, but even he has no problem playing football on Saturdays. It's not a religious thing for them. I've spent the last 42 years working with many Jews in Las Vegas where I've worked, and most of them are as interested in high school, college and pro sports as any other group.