I know it is the same everywhere and even harder, it all depends.
But to call it out for what it is needs to be done from time to time. If we stay silent there will never be a change. Injustices are happening all over the world but we need to have the right to call them out wherever we are. I know about the reputation Germany is having, behind the scenes it is a different story and though it may be a better place to live compared to others, there are a lot of things that are not right in this country.
Releasing my frustrations helps and I am glad this community is offering a place where we all can release some of our thoughts. Venting is a thing that needs to be done, it helps us develop other thoughts, strategies, solutions because an anger is released and not occupying a mind anymore.
Why being ashamed to rant a little bit? No one should, especially not here :).
Of course we can express our (critical) opinion on anything. It is good to do it, our opinions define us, in the end. I am a conservative, I consider that many things have been acquired with difficulty and I find it difficult to give them up. You are part of the progressive generation, you want a change. It is normal.
I am afraid of a criticism of everything but which does not show a solution. A solution and a future we should not be afraid of.