The problem with him not looking for a solution to black Rukh is that it is the main flaw of Solomon's world. People who reject 'destiny' are punished for it in the afterlife and they don't know the consequences or why they were punished. It's one of Sinbad's arguments against the old world. I...
One task that Aladdin seems to have forgotten about was his promise to Mogamett to find a way to turn dead peoples rukh white again. His current attitude shows that he probably hasn't worked on it at all.
One of the main topics of this Manga that I could not make sense of until now was the whole debate about whether or not Solomon gave people free will. It was the villians main motivation but it always felt like they were using the ambigious concept as an excuse to cause conflict. I understand...