From Tuchanka with Love wrote...
Explain to me why he isn't. Not matching up with human morality is not a reason. So guess what? Genocide doesn't count. Genocide can be a necessary, especially looking in the eyes of a higher being who has much more at stake than a couple trillion individuals.
The Star Child said...
"The Created will always rebel against their Creators."
Synthetics will destroy all Organic life. It is inevitable. (Not exact quote, but the integrity of the meaning is intact.)
"The Reapers are my Solution."
In other words, the Created will rebel against their creators, Synthetic life will be the end of all Organic life, and so the Star Child creats a Synthetic life to manage his Cycle. He is literally using the problem as his solution. This has nothing to do with omniscience, this has nothing to do with religion, this even has nothing to do with morality.
The failure of the Catalyst/Star Child has everything to do with him being retarded.