n the other hand, the Emirates and KSA paid dearly for allowing the Egyptian Muslim Brotherhood take refuge during the Nasser years of Egypt.

I'm unsure how regional political alliance and Muslim Brotherhood integration with Egypt's local politics was corrupted, shall we say, by Qatar alone in the intervening 40 years. It seems to me that US collaboration with and hostility toward Nasser's successors which delegitimized or "radicalized" Muslim Brotherhood was required to foment conditions for regional punitive action between Muslim sects (codename: "Arab Spring").

Would you elaborate a bit more about the roles of Sadat and Mubarack in this context?

Diversity is the key to economic and political evolution.