You are too naive to think they won't target Turkey. Didn't they launch a suicide attack in southern Turkey killing more than 50? Aren't they holding Turkish diplomats as hostages? This has nothing to do with Shias only. Open your eyes and watch how they are massacring even AQ in Syria and how many suicide attacks they have executed in Sunni areas where people despise these animals. They want a caliphate and you are also part of it. If you think so nice of them, good lock confronting ISIL guys introducing yourself as a secular person. Then don't complain to me if they cut your head off.
And for Iran's case, don't worry, ISIL is nobody to confront Iran. They will be held off in Iraq.