America is totally different than Egypt. I don't know the exact stats but its estimated there are over 300 million guns owned by private citizens in America.
If America had an uprising 100% of the combatants would be armed. They would be armed with some of the worlds best rifles. Americans also have a vast knowledge of explosives.
How many of the Egyptians in that video were armed ? Looks like about 1 out of 250 has a gun.
Americans aren't stupid enough to enter a firefight throwing rocks and stones.
Americans will have snipers on top of every roof and inside every window.
Americans will have an IED planted on every street.