1. They require the use of private property for enforced speech and self-incrimination.
2. They place liability for user behavior on to a third party, violating the maxim of law against prosecuting one person in the name of another, which is covered under the customs and usages clause.
3. They require a private person who is not a corporate actor to perform labor as a data collector for the government, which is involuntary servitude and violates the 4th amendment clause on unreasonable searches and seizures.
4. The law is malicious, and dishonest on its face, making it null and void, hiding behind the pretext of 'children' when it is obvious that it does nothing to protect children and merely lays a foundation for further encroachment on the privacy of all ADULTS.
5. The law is 'void for vagueness' and is worded to allow enforcement to interpret and define it to mean anything they want it to mean, giving them a sledgehammer to attack anyone, anytime, anywhere, for any cooked-up 'reason'.

I could list many more but I'm already tired of this nonsense.