Substitute earthquakes, volcanoes, hurricanes, tornadoes, disease, famine and war for "the struggles of living things on earth" and the sentence reads the same and carries the same intellectual weight. Religion is not science, and if religious people insist on asserting themselves to be authorities on natural phenomena, they will look like fools and discredit their religion.
just insist that God is the author and authority of natural phenomena. Man religious or not is not the final authority on nature or morality..