Yes, your right. There is a danger for many extremely laymen Muslims to be led astray and adopt deviant beliefs like those of Zakir Naik and Shabir Ally. One must be well grounded in knowledge before listening to these people. But this danger is low because Zakir Naik and Shabir Ally rarely talk about fiqhi issues, most of their videos are just Muslim-Christian dialogue and apologetics. In fact, I wasn't even even aware of the deviant beliefs of Shabir Ally before reading this thread. Although it does disappoint me a little, it does not keep me from being attracted to his videos. He is, no doubt, and intelligent man, having memorized both the Qur'an and the Bible (This is fact really impresses me about both Zakir Naik and Shabir) I intend to watch more of his debates after Ramadhan . The only one I've watched is the one between him and Sam Shamoun.