I am not familiar with the link where Eja stated what he is supposed to have stated, but it was not Wsr (Osiris) that was to blame for Kemet's (Egypt's) downfall, it was the Persians, Greeks, and Romans.

First of all, Wsr is the ancestral God of all humanity, not just Merita (Africa). He is a God with human characteristics, but a God nonetheless, and his reason for traveling the world and teaching us was to uplift us, his offspring, from the life of savagery and barbarism we were experiencing. It was compassion and love, not ego, what does a Deity have to be egotistical about?

To understand why Kemet (Egypt) declined, one has to first understand the nature of evil. These modern doctrines that evolved out of Kemet's influence by literally plagiarizing at one end and inventing at another end teach that good is a power that overcomes evil. But the original version of that was that good might win some battles, but evil is more dynamic and there is no real defense for it other than mastering onesself. Our ancestors saw evil as a power and good as a process. We each would have to contain the evil within ourselves if we want to defeat evil, because it is eternal and can't be killed.