Like Christianity, Jeudaism and most other major religions, Islam is founded on principles of violence (and more so, intolerance). However this should not be used to attack the people who follow the religion. The vast majority of Muslims in the West are tolerant people and if you dislike religious people based on just one part of their character you ignore the rest of their lives.
When people go and protest against Islam or against Muslims they are harbouring a battle because innocent people, rightly, feel personally attacked. This creates a cycle of hatred which potentially results in violence and more hatred between two sides who both believe they have a moral high ground when neither ever did.