Islam or Quran do not teach hatred, enimity or violence. If some people are misguided, don't blame the religion altogether. Don't you have fanatics in your religion. Who burnt Staines and his two children alive ? Does that mean Bhagwat Gita teach killing others? I don't think so.
If you want criticize anything, first, attempt to learn something about what that particular religion or the holy book say and then step it for commenting. If you write - Simply for the sake of writing, then, you are actually sowing the seeds of hatred among others.