We can all agree that not all Muslims are bad or good, exactly as not all Christians are bad or Jews are not all bad or good. But how many of all (percent) must be bad in order to consider them all bad? How many Muslims of the 1.2 billion must be bad in order to say that they as a whole are hopeless?
Now, I know you are not convinced. So, after these things have been said, lets put it another way. How does it sound: Do you believe Nazis are bad? I believe everyone here hurries to say YES! But wait a minute: not all the Nazis committed crimes, exactly as not all Muslims are terrorists. So why ALL the Nazis are bad? Can you see the double-standard here? Yes, Nazism is a bad ideology, but does that make all its adepts bad? Islam is also bad - after all the Quran asks the death of the apostates and encourages Muslims to mistreat non-Muslims - so why Muslims are not bad as well?