Itachi is great. It’s even more powerful that he specializes in genjutsu which literally distorts your perception of reality. I agree with what you are saying. I don’t think one can ever be redpilled on the true nature of reality. But I think we can have a firm understanding of some realities. For example, we are aware of the reality that contact with fire causes physical pain in normal circumstances. This is accepting reality. The nature of that pain may not be known but the sensation is known through our own experience/perception. You can say that babies are not aware of this reality because they often have to get burned first before they learn.