#1 I'm an atheist but you should do more research:
Quran (2:216) - "Fighting is prescribed for you, and ye dislike it. But it is possible that ye dislike a thing which is good for you, and that ye love a thing which is bad for you. But Allah knoweth, and ye know not." ~~~ Not only does this verse establish that violence can be virtuous, but it also contradicts the myth that fighting is intended only in self-defense, since the audience was obviously not under attack at the time. From the Hadith, we know that this verse was narrated at a time that Muhammad was actually trying to motivate his people into raiding merchant caravans for loot.
Quran (4:101) - "And when you (Muslims) travel in the land, there is no sin on you if you shorten your Salat (prayer) if you fear that the disbelievers may attack you, verily, the disbelievers are ever unto you open enemies." Mere disbelief makes one an "open" enemy of Muslims.
Quran (4:104) - "And be not weak hearted in pursuit of the enemy; if you suffer pain, then surely they (too) suffer pain as you suffer pain..." Is pursuing an injured and retreating enemy really an act of self-defense?
Quran (3:56) - "As to those who reject faith, I will punish them with terrible agony **in this world** and in the Hereafter, nor will they have anyone to help." ~~~ SOOOO Peaceful ...
Quran (4:89) - "They but wish that ye should reject Faith, as they do, and thus be on the same footing (as they): But take not friends from their ranks until they flee in the way of Allah (From what is forbidden). But if they turn renegades, seize them and slay them wherever ye find them; and (in any case) take no friends or helpers from their ranks."
Sahih Bukhari (52:177) - Allah's Apostle said, "The Hour will not be established until you fight with the Jews, and the stone behind which a Jew will be hiding will say. "O Muslim! There is a Jew hiding behind me, so kill him."
Other than the fact that Muslims haven't killed every non-Muslim under their domain, there is very little else that they can point to as proof that theirs is a peaceful, tolerant religion. Where Islam is dominant (as in the Middle East and Pakistan) religious minorities suffer brutal persecution with little resistance.
I could go on and on but too many prefer to stick their fingers in their ears and scream "ISLAMOPHOBIA" or something along the lines of "not ALL Muslims are violent" even though over 25% worldwide support violent jihad.