Freedom to raise your kids, and freedom to live your life as you choose, yes. Laws aren't needed for this. Content management should come from parents, and if websites are pushing agendas or misinformation you don't want your child on, you should be dictating what they are viewing.

You don't (lawfully) ban kids from parts of the library because you are worried they might read about things you don't like, you monitor which books they are reading and tell them not to read such, or discuss why/why not those resources do not agree with or match the principles you agree with.

This is the equivalent of banning kids talking to each other at school, on the bus or at the mall/park. If a platform is pushing harmful information then block that site, or bring a suit against the site for pushing harmful information.

Edit: If you don't want your kid on certain apps or sites you can start with things like this: https://families.google/familylink/ Don't force it on other people with laws, I believe parents should have the choice for themselves. Apps like that allow you to block social media sites, restrict their app usage and reset passwords if needed.