Religious opposite perspectives
Are there any discussions, exchanges, or debates between (for example) converts to __ religion and ex-members of that religion? Such as between Christian converts and ex-Christians.
I also wonder how the perspective of an ex-Christian --> Muslim convert would differ from an ex-Muslim --> Christian, or other combination of religions, like ex-Muslim --> Hindu, or ex-Hindu--> Christian.
I suspect that these are opposite perspectives, so they would not get along easily, perhaps seeing each other as misguided?