The fundamental problem is still the way math is taught and not the students.
It's the parents. Much of the issues regarding our youth can boil down to the type of person who is having children in this era.
What does this mean? Bizarrely eugenic undertones to this.
I've noticed an increasing proportion of serious, hard-working people who would be good parents are opting out of having children citing the bad state of the world today. Meanwhile, people who lack foresight and just act on their flesh continue to have random, unwanted children who grow up developing bad habits. I work two jobs, one white collar and the other in a warehouse; the folks in the latter are having a lot more kids and have much worse lives and life habits than the folks in the former. Anecdotal ofc, and I have no idea if that is what SevenEleven was talking about, but it's what came to my mind when I read that post.