Since the origin of all religions is peace, those who preach otherwise are wrong and those grow and sell poppy are wrong. For example non of those religions agrees with such unlawful activities. The point is that, the origin of religion as I said earlier is not a problem by itslf, the problem is those who undustand it wrongly and justify their wrong doing using a religion as scape goat. Take the example of Christian who drink alcohol or muslim who commit fornication, non of them are right. The problem facing any one try to analys the religion problem is the fact that, there is no way that people in this world will leave without believes so religions are there to stay.
Am not so sure of that my friend. Judaism, christianity and islam have a history of shedding innocent blood and are not as peaceful as you would seem to suggest.