Wrong. The internet and his peers raised him.
Nitwit phones for children are a choice you make. They do not just pop out of the ether.
Your children's companions are also, at least partly, a choice that you make as a parent.
And if the argument is that the "other" parent is the one allowing those things, you picked him/her as well.
Raising kids is, as you know, not easy now days. But it never really was. Which is why so many kids have gone wrong over the eons.