Social Media providers have spent the last 20 years to make everything more toxic, more harmful. They are aware that their products are damaging, but instead of trying to reduce the harm and to come up with some self-regulation ("Oh noes! Then we make less profit from harming teenagers! Impossible! Think for the Shareholders!") they spent all their money lobbying against any form of mitigation.
Social Media providers have spent the last 20 years to make everything more toxic, more harmful. They are aware that their products are damaging, but instead of trying to reduce the harm and to come up with some self-regulation ("Oh noes! Then we make less profit from harming teenagers! Impossible! Think for the Shareholders!") they spent all their money lobbying against any form of mitigation.
Just shut them all down.