Why God does not save people who are dying of hunger, illness , terrorism etc.?

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From my childhood I have been hearing that God is omnipresent , omnipotent and is for peace and everything good for people and chiefly for the poor . But in reality I have been observing just the opposite . Millions of people and other animals and creatures are dying of hunger, illness , terrorism , calamities ,accidents and what not . And surprisingly the lion's share of these deaths and sufferings occur to the poor . I thought since God is omnipotent and omnipresent and since he is loving in nature all these sufferings will vanish in no time . Particularly for the poor . But that has never happened . The death and sufferings are ever increasing for the poor . When I asked others who are Godly , I got the answer that these sufferings are for those who commited sins in their past life . I approached some cancer patients who were sufferings and asked if they remember any sin they had commited in their past life . ( I was once vehemently condemned for raising such a question to a sufferer ) . I also donot remember anything done by my past incarnation . Today i againg raised the question in a gossip and got the answer that these things are not REALISED by people like me . I am not satisfied . Because , the so called HIGH SPIRITUAL things are of no use to those who starve 4 days a week 26 days a month ... So I again raise the same question "Why God does not save people who are dying of hunger, illness , terrorism etc.?"