Or conversely, as the OP suggested systems end up that way. Not necessarily designed fairly or unfairly, they can become that way over time.
> It is pure stupidity to accept that all systems are unfair. This is not true and is nearly an obscene belief.
Where did anyone say that all systems are unfair? Where did anyone say you should just accept the way they are? Those do seem stupid and I don't see where anyone posited those ideas.
On the other hand it does seem very useful to understand that unfair systems do exist, how and why they came about. And if you have no control or influence over a system, then you need to accept it. Those are all pretty obvious truths and is what the OP highlighted...