You just need to read history
All was not well in Iraq before America invaded .... Sadam had already killed 1 million people under his rule and there was a continuous war in Kurdish North
A butcher cannot be allowed to kill the people just because he has enslaved them on gun point
70% Shia population of Iraq is happy and enjoying the fruits of democracy ...just a 30% unjust minority has problem because this minority was the beneficiary of bloody autocracy
Libya was already destroyed before Western intervention ... People themselves took arms against the Autocracy of Gadafi , Gadafi in revenge started bombing his own cities , Western just interfered to stop him bombing innocent citizens