Earlier quoted context omitted.
I am astonished by your entitlement. The state has no obligation to tell you about the inner workings of their selection / profiling process. All that counts is safety of its citizens. If I'm not a citizen and representatives of the country I want to enter tell me that they think I am a risk, the systems actually works. Of all these one-sided stories we are hearing one wonders about what kind of darknet "activism" so…
I would be kind of okay with this if I could just turn around. We think you are a risk, either show us your phone - and we may or may not allow you to enter after looking at it - or take the next airplane home. It would be nice, if you would tell me this before I waste my time and money to go on the flight so that I can decide in advance if I am willing to find out how looking at my phone will influence your assessme…
If you don't take part in any shit that annoys the powers that be, you will most likely never be approached by border guards at all. I really think that as citizens of the western world we are in no position to argue that travelling between countries is bad or cumbersome for us.
Edit: To answer your reply, it is not a human right to be allowed to go into a certain country.