Muslims are only peaceful until they have increased their numbers sufficiently to where they are able to wage jihad on the countries to which they have immigrated.
The West must understand that concepts like multiculturalism and liberalism are not worth fighting/dying for. Nationalism, democracy, and freedom are. Islamic jihad has been going on since the 7th Century, only pausing when Muslim nations have been weak. Islamism is like Nazism and Communism in that it is a system of totalitarianism which will destroy all its opponents. Radical Islam IS Islam, the Qur’an tells us as much. The earlier peaceful passages have been superceded and negated by the jihadist messages that followed later.