I've looked at the EU Charter of Fundamental Rights and don't see why this would violate it.

Both the right to privacy and the right to protection of personal data have exemptions for government. The right to private communications was modified by the ECHR to give an exemption for prevention of crime/protection of morals/etc.[1] and the right to protection of personal data exempts any legitimate basis laid down by law[2].

[1] https://fra.europa.eu/en/eu-charter/article/7-respect-privat...

[2] https://fra.europa.eu/en/eu-charter/article/8-protection-per...

If you don't see it, it doesn't mean that it is not braking it.

They themselves even wrote it in the proposal - "Whilst different in nature and generally speaking less intrusive, the newly created power to issue removal orders in respect of known child sexual abuse material certainly also affects fundamental rights, most notably those of the users concerned relating to freedom of expression and information."

This proposal is de facto a mass communication surveillance of EU citizens.

Exactly as you mentioned every single member state and EU have laws that can for example issues a court order and seize your communication devices if you are braking a law for an investigation, there is no need for EU to have a law that first goes against the very essence of EU, second it also brakes I am pretty sure every single constitution of each different member states.

If this law passes you live in a totalitarian state and there is no excuse for that.

What's the point, then? The purpose of a document defining people's rights is to help ensure that governments don't trample those rights. If the government has explicit carve-outs to violate those rights, then the Charter isn't worth the paper it's printed on.