He doesn't run proprietary software himself. If other people use it, that is their problem. There is nothing we can do about it other than educating them. All the things you have mentioned could easily work with Free Software. So if everyone wanted to stop using proprietary software, we could replace it with free alternatives (or develop new ones if needed). There is nothing impossible about this.

I don't think it's a good idea to blindly trust the government. We need to have public oversight. Besides, there is no place for trust in computer security. If you have to have trust in some system, it is not secure.