Except that the people who actually know what they are talking about when it comes to child protection disagree with you and the politicians trying to force this through.
According to the DKSB (Deutscher Kinderschutzbund) [2], encryption barely plays a role when it comes to the distribution of CSAM [1]. DKSB is not in favour of this.
You can pretend as much as you want that this is about children, that doesn't make it true. This was never, at any moment, about protecting children. Authorities already lack the resources to even go after the cases they know about, adding a huge pile of crap data to work through is probably going to make this situation even worse.