Net neutrality is (with some imagination - even that was already stretching it) about inter-member state commerce, i.e. the common market. For surveillance that point is much harder to make.
"So, I don't have doubts about the fact that EU has the right and the power to do something."
Based on what knowledge or qualifications? Have you studied the structure and history of the EU? For example, can you say (without looking it up) what the difference is between a regulation and a directive, and what the difference is between the European Council and the Council of Europe? Because if not, frankly, you're not qualified to have a valid opinion on this.
"So, I don't have doubts about the fact that EU has the right and the power to do something."
Based on what knowledge or qualifications? Have you studied the structure and history of the EU? For example, can you say (without looking it up) what the difference is between a regulation and a directive, and what the difference is between the European Council and the Council of Europe? Because if not, frankly, you're not qualified to have a valid opinion on this.