Not all Muslims are radical extremists, but all radical extremists, in our world today, are Muslims. Some may differ on the degree of extremism, but none will debate that the ultimate goal of the religion is global domination, with enforced Islamic Sharia-Law for all.
Not all Muslims are intolerant and violent, but all intolerant and violent Muslims are submitted to the political/religious practices of the faith, which is ultimately intent on making all Muslims and non-Muslims submit to an Islamic pope-king, known as a Caliph. This is increasingly being revealed each day by the barbaric Islamic-terrorists in ISIS and Boko Haram.
Not all Muslims are presently violent, but all Muslims must ultimately submit to the teachings and practices of Islam, which is inherently violent. Its texts (Koran and Hadith) and teachings (from mosques and many college campuses in the West) reflect what Mohammed taught and did and are filled with incitement to hate and murder infidels—specifically Jews and Christians—as he did.
January 16 was Religious Freedom Day in the United States of America. I hope you celebrated it!