First, sometimes obvious things need to be said, and Grohl is better placed than either of us to state this obviousness.
Second, I don’t like pop. I love it. I also love reggae and cricket.
Third, I think you’re over simplifying Grohls POV - he’s specifically trying to defend the kids who don’t make it through (again, a very specific) pop factory process. That’s a benevolent, and well intentioned point of view, and I don’t see what’s not to like about that, even if you hate Dave Grohl.
It sounds like you’re attacking the man and not the argument. Classic ad hominem (old man shouting at the clouds etc etc yadayada).
See what happens when you listen to pop? Your brain gets all sloppy and clouds your judgement. Beware kids! Pop is bad!!