How can you denounce them as heretics? To them they are following the pure brand of Islam and I am certain that if you challenge them to a debate, they will prove that you are a heretic and that they are the true followers of Islam. The reason why I say this is because there was a debate on a television channel a few nights ago where a radical Muslim scholar from Malaysia debated against a moderate Muslim scholar from the UK. The Malaysian guy claimed that Islam promoted the killing of unbelievers whilst the Brit scholar disputed this. There were various other topics up for debate such as Jihad etc. It was clear that the Brit scholar came out beaten by the Malaysian scholar when it came to quoting from the Q'uaran and the Hadiths