Let's make one thing clear, Islam is a beautiful religion but it is being misrepresented in media and it is being misrepresented by some individuals who claim to adhere to it.
"Saddam" was a secular Arab leader, he was an oppressor, his people disliked him just as the Syrians today dislike Bachar. Yes, some pan-Arabist folks will support "Saddam" but they're not representing Islam by doing so as they're liberals and nationalists. Another group will support "Saddam" just out of hatred for Shia, they actually hate the man but will praise him for sectarian reasons only.
We Muslims are suffering a lot because of these tyrants who rule us, they're corrupt and filthy individuals the whole of them, we certainly do not appreciate them being around but this is the circumstance we're in today and so we have to exercise patience. We believe that by purifying our souls, by perfecting our manners and by being sincere in our worship, we can then become a good example for the coming generations who will succeed us, in a way that they can produce a better leadership.
Regarding "Isis", this group of ignorant fools is no more than a terrorist organisation, they've damaged the image of this religion and reduced us to a bunch of savages in the eyes of the people. These people have no knowledge in religion, they've got no common decency and certainly no mercy and humanity in their hearts. I assure you, not one of them has opened a legitimate book of religion and learned anything in his entire life, rather they make Takfeer on the people and fight the believers and cause division and tribulation in the lands. This is a Khariji Takfeeri sect, similar groups have emerged in Islam's history.
Finally, the library burning, so far I see no evidence which is remotely reliable, just the word of a 9th century historian, I'll look into it more and see if I can find anything. I think the burning of library as large and as great as the Persian library, deserves at least a Hadith or two with reliable chains, we have LOADS of narrations on so many details that took place, how come this thing is nowhere to be found? Huge question mark here.