Because we've been made into scapegoats in some cases. Muslims love blaming the West for Islamic State while conveniently ignoring the domestic factors involved in creating them such as Islam's inability to tolerate differences of belief or opinion. It's undeniable that the West toppled Saddam's government, but we didn't force or even motivate sectarian militias to take up arms and begin fighting one another. Saddam's regime clung to power by suppressing the old resentments and disagreements. They never went away. Pinning the blame for Muslim sectarian violence on the West is tantamount to saying that Muslims will only not kill one another if they're restrained by an exterior force - in other words they'll be violent because they don't know any better.
As to the other things you have mentioned, I'm not making this about you specifically, but about the wider attitude among Arab Muslims that the West alone is to blame for
[insert problem here] even when we're not.
@Smart_Guy demonstrates this attitude in one of his previous posts on this thread. He seems to be blaming 'Western democracy' for the state Yemen is in rather than his own government's foreign policy.