I think the issue is that the EU believes to do these things above corruption. In a sense, if you think you are upholding human rights, free speech, and personal privacy, you don't think it is required to offer people ways to hide from the government.
The government thinks the rule of law itself is good enough. Even if they are aware of your speech and it criticizes or shock or whatever the currently elected, they believe nothing could be done against you because the rule of law would protect your right to do so.
Therefore they assume if you have to be secret about it, you must be doing something illegal, otherwise they don't see why you would worry about the government being able to know you are doing it, since they could not do anything against you.
Here for example, they assume that it would only be used to catch and prevent CSAM, which is illegal. But that it would never be abused to prevent legitimate legal free speech, or that it would be done in a way that your privacy is respected because the rule of law won't allow other use of "snooping", etc.
And to be honest, I don't know if they are completely wrong or right. It's a different perspective, one that relates to "gun control" as well.
In the US, people have zero trust of government, and feel like at any point they need to be armed and have the means to hide, escape, and rebel against it. That means secure communication channels, bearing arms, etc.
In the EU, generally people assume that the systems in place will protect the institutions and upheld the rule of law, constitutions, democratic freedoms, etc. And people trust the system in place, so they don't see why individual citizens should be allowed to have weapons, places to hide, etc., and see that more in practice as something that enables crime.
Generally, the counter argument to the American stance is that the power imbalance is too big anyways, it's the system that must be protected and needs to be trusted, if the system becomes corrupt, no amount of civilian weapon and hiding places could match the power the state has, so it's a futile attempt that just ends up benefiting criminals.