Technology can protect us better then laws, if it comes to dataprotection

In my country there is a debate going on about legislation which gives intelligence agencies more freedom to tap and listen-in on our communications. What strikes me is that people put tremendous effort in legal/judicial part of things. Which i can in itself only applaud as having studied public administration and being a civil servant myself. It's good to work on the best rules and legislation we can have for protecting our data & privacy. At the same time we should devote at least as much attention to the things we can do now and which instantly improve our privacy and data protection. Very simple things really like not using whatsapp, messenger, telegram etc. but one of the various alternatives that are truly opensource, audited and more secure. The same people that put their signature on a request for better laws with regard to privacy, start using whatsapp 10 seconds later. If those people all started using Signal for example ( https://signal.org/ ) , that would make a lot of difference. Also for governments itself, not creating large central stores of personal data and not starting any projects without using technology and concepts that have privacy and data protection "embedded" / are intrinsic part of design and architecture. Blockchain, concepts like self sovereign identity, zero knowledge proof, crypto and hash-related technology are all available now in various forms and variants. There is no excuse for not starting to use them now to make systems and applications that protect citizens against both companies and the government itself. This can be done by joining forces with the various innovative and starting companies in this field and with those larger companies which share the same attitude and thinking.