Is Islam a threat to world peace?

As claimed by Muslims, that the Islam is a world religion, and its due to be installed on global level one day. Also claimed that all other Gods are false and there is only one god Allah and last messenger is profit Mohammad. So Islam clearly denies the existence of all the existing Gods and also put full stop to new creations of future gods. So in this scenario, what is future of non believer in this doctrine.Would all of them be slaughtered and sent to hell by believer of Islam? Would it be a peaceful proposition for world peace on the face of Islamic agenda?

what time of the day? I just want to make sure im not disturbing them while they are actually performing hajj rituals! I know that the time there is 3 hours forward compared to the U.K. So what time should i call them
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Hajj package UK