Just because Facebook supports it doesn't mean it's bad. They may not support it for the same reasons, they probably just don't want the cost and liability of doing identify verification themselves and so want to make sure all of the cost and liability is on the OS vendor.

Yes, the New York proposed law is far worse, and we absolutely should be pushing back against that. And Facebook doesn't care, because they only care about moving the liability onto the OS vendor, not on actual privacy.

But still, just because this was supported by Facebook doesn't make it bad. Sure, Facebook doesn't care about privacy, but they do care about not being liable for this, and in this case, they're right, it is actually much more efficient to centralize this function in the OS, and it happens that that way it can be done in a privacy preserving way as California's law shows.