My assertion would be that there is a direct line from

i think that this kind of firehouse-sucking access to the world is more than a lot of people can bear

to

if they're addicted to the ipad, pull the teat out of their mouth

that doesn't seem to happen often enough. You'd do it, because you know full well where the internet is unsafe, but for the vast majority of parents it seems like an insurmountable task so they just don't. I'd argue the point is not to scare parents, the point is that parents should be helped in managing this shit because the techbros sure as fuck won't help. Tech always moves much faster than society can catch up to it, but in this particular case we seem to be lagging behind in a very painful way and the consensus seems to be to maybe do the absolute minimum.

Is the Internet a net positive? Well, yeah, but in moderation. So is alcohol as kb points out. I, too, was a socially isolated preteen on the web and have seen my fair share of awfulness due to the complete lack of any parental guidance. But it exposed me to ideas and information and people I'd otherwise never meet. Because it was hard for anything to engage me irl. I fled to niche hobby phpBB forums and mowed down pedestrians in GTA: Vice City when I was nine.

i don't see how the solution is continued coddling

I agree, so I think the solution is better parenting. I don't think I ended up worse from my exploratory years on the Internet but that was way before algorithmic feeds, with my own cautiousness a determining factor in what I did and did not do. Kids and teenagers benefit from parents giving them some borders. I didn't get any, but I came of age just before social media really shaped teenagers. Gen Z also didn't get any restraints, but got rekt by social media. Thank fuck it's dying, but that doesn't mean we're out of the woods I think.

make sure every once in a while they're not getting groomed by a neonazi or a pedophile. just relax.

This strikes me as a very absurd juxtaposition. What percentage of parents do you think are even aware of these dangers? because I'm afraid it's very, very low. My parents knew literally zero about the dangers, this generation of parents know...some things but it frustrates me how far we still have to go.