Your post seems to imply that end to end encryption is bad and that we need a surveillance state run either by corporations or government in order to protect children.
We need to not head down this path.
Protecting children has always historically been led by their own parents and we should empower that. Improvements should always be about parental education (teaching parents to recognize the signs of abuse/grooming before abuse) and cultural education (teaching about the harms of sexual abuse so that potential offenders don't act). Contrary to popular belief, most pedophiles are not actually psychopaths and actually have consciences and if they see the damage that their actions could cause, they're less likely to act and more likely to find non-damaging outlets for their urges (simulated or drawn material, as two examples).
We need to not head down this path.
Protecting children has always historically been led by their own parents and we should empower that. Improvements should always be about parental education (teaching parents to recognize the signs of abuse/grooming before abuse) and cultural education (teaching about the harms of sexual abuse so that potential offenders don't act). Contrary to popular belief, most pedophiles are not actually psychopaths and actually have consciences and if they see the damage that their actions could cause, they're less likely to act and more likely to find non-damaging outlets for their urges (simulated or drawn material, as two examples).