Assalaam walaikum
Brother, there are plenty of fatawa's posted on TTI regarding your questions. Many are cut/paste from Islam Q&A.
The only response I can write per the demonstrations is this: There comes a point when one has to commit to the personal choice of belief. We, as Muslims, use common sense. We are told to fight oppression until there is none left.
The peoples of the countries, as one, decided that the rulers were the oppressors. The rulers did not adhere to the principles of Islam. These demonstrators are correcting wrong.