The clipper chip was a self-censoring device, which gave parents control over their children. It was one of the various things that got democrats labeled as the "nanny state". There's a good reason to oppose the clipper chip, and it wasn't because the chip was the problem, it's because the chip used content ratings, and its use would have required further labeling of content.
This ID law is a form of state-sponsored censorship and tracking. The true purpose here is to later push this to requiring IDs for other things on the internet, and to setup the infrastructure necessary to do so. It's nanny-state, but as usual, the "protect the children" thing here isn't the purpose, just the vehicle. They don't want to protect your morals or your children, they want the ability to control your access to information.