'Dog whistle' politics
This appears to be 'dog whistle' politics. The use of emotive language attacking a specific use of something you object to whilst ignoring the wider context, as Shakespeare says in Hamlet:
"Nothing is good or bad but thinking makes it so" (Hamlet, Act 2, Scene 2, page 11)
The question is whether those proposing the ban on e2ee genuinely want it 'to protect the children' or whether they want to ban it for other, undisclosed, reasons. They are quite happy for government and 'defence of the realm' communications to be end to end protected. Barnardo's clearly is into child protection, but I doubt they are actually experts on information security.
Biting the hand that feeds IT
