This subject is a near perfect example of "man bites dog" news. Is there a nugget of truth to it? Of course. My experience so far doesn't tell me that this is such an epidemic that it's anywhere approaching an existential threat to anyone other than a minority of individuals. The kids (and adults) having infatuations with LLMs probably were liable to not reproduce at replacement rate in the modern environment anyway. The fact that it involves kids terrifies everyone, making it an even more compelling story. The ability to measure it is so bad that it's almost not worth considering, because so much of it is based on survey data and lots of people are liars and post hoc rationalizers.

What I find interesting about your response here (and perhaps you could elaborate more) is that it does seem plausible that AI boyfriends would be a huge issue with girls. If anything, it might actually be worse for women, if not now then in the long term. Women love reading about things that invoke certain emotions (the market for literature targeting women dwarfs that for men) and playing games like The Sims which lets them vicariously experience social situations between imagined archetypes in a way that gives them ultimate control. LLMs could fit both of those niches beautifully. It's not that there aren't plenty of men and boys that are compelled by reading and talking to someone/something feminine, but many of a man's needs are already pacified by porn, which we don't even need AI to produce if we're being honest.