Yes, RBs do--and that is why they hit the wall at age 27-8. ("According to this data, the word "old" means 28 for a running back, 30 for a receiver, and 32 for a quarterback. https://www.pro-football-reference.com/articles/age.htm This is probably not a surprise, as it squares fairly well with conventional wisdom.") To assume a QB is not vulnerable to hits like a RB is not a safe assumption. Most of the QBs that last past 32 are not running QBs. So if the average "old age" for a QB is 32 and the average "old age" for a RB is 28, would you be willing to agree that RUNNING QB--the one who has absorbed more hits than anyone else in the NFL---would fall somewhere between? I do not know how you could argue otherwise.
"The NFL is a deeply unfair league. One hit can end a career, and if you take 1,235 of them, it gets hard to avoid the type of hit that could change your career. " Cam has been hit far more often and more viciously than other NFL QBs. See article: https://www.theringer.com/nfl/2019/11/6/20951102/cam-newton-panthers-legacy-nfl-injured-reserve
So comparing Cam to a RB is more fair than it is not fair. This article in ESPN in 2016 is prophetic: "Newton runs the ball much more than any other quarterback and gets hit much more than any other quarterback, and we'd all be fools if we failed to make a connection there. This is who Newton is, and it's who the Carolina Panthers ask him to be. But maybe it's time to think about changing things up a little bit. " https://www.espn.com/nfl/story/_/id/17747117/superman-simply-takes-too-many-hits-cam-newton-panthers-think-nfl-2016
Here is 1 game--tell me which of these hits features Cam in a position to absorb a hit as well or better than a RB. If you think 10 hits on a QB is equal to half of 20 hits to a RB--you are not seeing the same contact I am:
There is a very real scenario where one doesn't and that is if the Chargers take Herbert. Sans a blockbuster trade for a ready-made veteran starter, Herbert is absolutely a target for them at #6. I'll be shocked if #1-#5 doesn't go how most of us think, especially with Tua's hip now getting a clean bill of health to the Dolphins. If the Lions deal Slay, it's nearly a lock they take Okundah. The Giants may or may not pass up Simmons and that's the only wildcard in my mind right now.