I am more than a little confused here.
How do dictators come to power -- force.
How do dictators maintain power -- force and the threat of force.
If you challenge a dictator, how do you expect him to respond -- with force.
Mubarak may have given up, but do we really expect the Libya guy (I cannot choose which of the 20 acceptable spellings to use) to give up also? The Chinese faced a revolution attempt in 1988 -- how did that go for their protesters??? As Stewie Griffin would say, "Not well, Brian, not well."