Optimist: You start by no calling "friend" to a kaffir and you will end putting bombs in some trains.
Don't let this Somalisiz to brainwash you with her perverted interpretation of Islam. She's spreading hate instead peace with this condescent attitude of someone how seems to know everything and really knows a shit about the real world. If you call someone a "kaffir", in some way, you're on the bound to call him an "enemy". Take a look at the posts by Proud Muslimah or Somalisis and count all the times the mention the word "enemy".
Their perverted interpretation of Islam inmediately brings you to a kind of nazi or fascist mentality. First, the non-muslims are kaffirs. The kaffirs are not human beings. 3) We are superior to kaffirs. 4) The kaffirs are our enemies. 5) They want us to live like them when we live in their countries. 6) Anything a kaffir does or says is an insult to my religion. 7) Kuffirs deserve to die, because they're not human beings.

Do you find any difference between the mentality of Somalisiz and Adolf Hitler? I don't find any. It's just in the paint you paint it. One said Germany, another one says Islam. But if you scratch on the paint, you will see the true colour.
And what you gonna get with that attitude is that Islam will be understood and seen here, in the West, as a dangerous, very dangerous religion.
Those fanatics are hijacking the real Islam and substituting it for some kind of neo nazism that they call Islam. Islam was always a peaceful and open religion. I live in a city in which you can see how open, respectful and peaceful Islam was for a long period of time. Nothing to do with the Islam they're talking about.
That's just a pervertion. Don't let them to brainwash you.