How will you reply to this statement?

There is only one allah, only one koran, only one islam... all muslims(those who follow islam) are to obey allah absolutely and without exception. the law of allah, the koran, clearly states that ALL who do not submit to islam are to be killed.... there is no such thing as a "moderate" muslim.... ALL muslims must obey allah... or they will suffer the same fate as any other who does not submit.