Morsi was elected with 9 million votes. If the MB has 40 million supporters, why didn’t they vote?
Have you seen any of the big-mouthed imams leading the cheers for Morsi? Of course not; they only encourage others to die. The crowds aren’t so big when the Egyptian Air Force is flying over them.
Morsi was never beloved even by the MB. He was their Mitt Romney and they wanted someone more radical. Morsi was seen as an American puppet.
No good will come of any of this at all.
The other thing to remember is Morsi was elected with 9 million votes in a run-off in which the only other choice was an old Mubarak crony, and only after promising all the sorts of things Obama and the nit-wits in Foggy Bottom though Egyptian democracy would bring, on which promises he and the Muslim Brotherhood promptly reneged, most egregiously drafting a constitution without any input from non-Sunnis (or even non-Muslim-Brotherhood non-Salafist Sunnis) and forcing its adoption by a simple majority vote.
The folks who didn’t vote for Morsi in the first round (and even some who did), representing a sizable fraction of those 9 million, turned against him over those broken promises and his failure (noted in stark terms in the article) to do anything to fix the Egyptian economy, so the Egyptian Army chiefs, I think rightly, decided that they had majority support to remove him. Recent events there are some odd mixture of military coup and informal recall election.