Causes stemming from both the Muslim Brotherhood & economic:
The Atlantic wrote:
Last year, Morsi pushed through a new constitution for Egypt despite objections and a boycott by liberal, leftist, and minority groups. He then issued a statement granting himself powers beyond the courts' reach, a move that drew sharp criticism from opponents. But Morsi said the declaration was necessary because the country needed a constitution and the courts were standing in the way.
What is seen by Brotherhood members as necessary in a post-revolution Egypt is viewed as an attempt to co-opt the revolution by the opposition. They point out that Morsi has allowed the prosecution and arrest of journalists and politicians that have spoken out against him, like the popular comedian Bassem Yousuf.
The Atlantic wrote:
Sunday's protests were not the first against Morsi. Anger over Morsi's attempt to grant himself new powers simmered over into large protests last December, which resulted in at least five deaths.
The difference this time, though, is that Morsi's failures have hit every Egyptian, and hit them hard. "The electricity used to not go out for a whole year," said Ali Shinawi, in the village of Damas, north of Cairo. "Now it goes out two hours every day." The power cuts have hit everywhere, even Cairo.
For the last three weeks, Egyptians have also been dealing with a severe gasoline shortage. Lines stretching for several kilometers are a common sight, tying up traffic on roads and highways and sparking violence between drivers. The Morsi government says the problem is being caused by smugglers who sell the fuel on the black market and deplete the supply for everyone else. But critics say the Brotherhood insists on keeping fuel prices extremely low. Egyptians pay only about $0.50 per gallon for gasoline, which is heavily subsidized. To pay for the difference, the government takes out loans, and in the past few months, Egypt's creditors have come asking for payments.
Not that I'd doubt the US would involve itself. With the Egyptian military, with economic aid payments, etc. But the president "the people" voted in seems to be viewed as a failure with things worse off than they were previously. Edited, Jul 1st 2013 12:38pm by Jophiel