What I see is 'conversion' from one religion to other is a basic reason for religious fanaticism. Whole world should protest against conversion. No one should be allowed to convert some else either willingly or forcibly. Once this is stopped religion would not be the reason for unrest.

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Brotherhood is the only necessity of the mankind, religion is not at all necessary for survival of human race. Let religion be limited to worship alone and that to in private places. Read more Here or Here or Here