point taken. To me, it has nothing to do with race and everything to do with athleticism. It seems counter intuitive, but I get nervous when a QB is too athletic/fast (felt this way about Manziel).
When a QB is so dangerous with his legs, he can be elite in HS and college without having to be extraordinary at reading defenses, having supreme accuracy, and anticipating throws and routes. However; These are the things that make consistent pro-bowl QB's. Guys like Tom Brady were never gonna win games with his feet, so from a very young age they had to be elite passers. If there was a QB who was a phenomenal athlete and had all these other qualities it would be a game changer ( some of the young guys in nfl could be that: Dak, Marriotta, Wilson, Watson maybe even Wentz). Maybe Jackson will be that, but who knows.