That’s all it shares for now (for the California law). Once that’s in, what’s one more step, where the user has to provide proof of age, rather than just presenting one? That requires identification.

If their goal is identification, rather than actually protecting pedophiles (we know this isn’t the case because the Epstein clients are not facing consequences), then it’s easy to see how this leads to that.

The slippery slope is not always fallacious. If it’s a reasonable case, it’s just called a slippery slope argument.