We have all seen blatantly ironic pictures like this. Islam is both a religion of peace and of violence. Both those claims are concurrently true. Everything boils down to how particular believers interpret the holy books.
And therein lies the risk inherent in any religion. The gods we invent seem universally incapable of communicating clearly and precisely. It can be said that the beauty of religious texts comes from their ambiguous flowery language, full of subtle shades and rich nuance, and thus open to wildly divergent interpretations.
Or these gods are callously capricious and care not for the suffering, death, destruction their imprecise words cause.
Or, applying Occam’s Razor, these gods simply do not exist.