You make good points. People always think that their god is the right one, and that he or she will interfere with their human affairs. Many people also tend not to understand the roles that religion and war have historically played for humans.
Here is a little about war:
War is one of the constants of history, and has not diminished with civilization or democracy. In the last 3,421 years of recorded history only 268 have seen no war. We have acknowledged war as at present the ultimate form of competition and natural selection in the human species. “Polemos pater panton” said Heracleitus; war, or competition, is the father of all things, the potent source of ideas, inventions, institutions, and states. Peace is an unstable equilibrium, which can be preserved only by acknowledged supremacy or equal power. The causes of war are the same as the causes of competition among individuals: acquisitiveness, pugnacity, and pride; the desire for food, land, materials, fuels, mastery. The state has our instincts without our restraints. The individual submits to restraints laid upon him by morals and laws, and agrees to replace combat with conference, because the state guarantees him basic protection in his life, property, and legal rights. The state itself acknowledges no substantial restraints, either because it is strong enough to defy any interference with its will or because there is no superstate to offer it basic protection, and no international law or moral code wielding effective force…
…In apologetic consolation war now promotes science and technology, whose deadly inventions, if they are not forgotten in universal destitution and barbarism, may later enlarge the material achievements of peace.
Durant, Will; Durant, Ariel. The Lessons of History (p. 75). Simon & Schuster. Kindle Edition.
And here is a little bit about the historical role of (most) religions:
Even the skeptical historian develops a humble respect for religion, since he sees it functioning, and seemingly indispensable, in every land and age. To the unhappy, the suffering, the bereaved, the old, it has brought supernatural comforts valued by millions of souls as more precious than any natural aid. It has helped parents and teachers to discipline the young. It has conferred meaning and dignity upon the lowliest existence, and through its sacraments has made for stability by transforming human covenants into solemn relationships with God. It has kept the poor (said Napoleon) from murdering the rich. For since the natural inequality of men dooms many of us to poverty or defeat, some supernatural hope may be the sole alternative to despair. Destroy that hope, and class war is intensified.
Religion does not seem at first to have had any connection with morals. Apparently (for we are merely guessing, or echoing Petronius, who echoed Lucretius) “it was fear that first made the gods”25 —fear of hidden forces in the earth, rivers, oceans, trees, winds, and sky. Religion became the propitiatory worship of these forces through offerings, sacrifice, incantation, and prayer. Only when priests used these fears and rituals to support morality and law did religion become a force vital and rival to the state. It told the people that the local code of morals and laws had been dictated by the gods. It pictured the god Thoth giving laws to Menes for Egypt, the god Shamash giving Hammurabi a code for Babylonia, Yahveh giving the Ten Commandments and 613 precepts to Moses for the Jews, and the divine nymph Egeria giving Numa Pompilius laws for Rome. Pagan cults and Christian creeds proclaimed that earthly rulers were appointed and protected by the gods. Gratefully nearly every state shared its lands and revenues with the priests.
Some recusants have doubted that religion ever promoted morality, since immorality has flourished even in ages of religious domination. Certainly sensuality, drunkenness, coarseness, greed, dishonesty, robbery, and violence existed in the Middle Ages; but probably the moral disorder born of half a millennium of barbarian invasion, war, economic devastation, and political disorganization would have been much worse without the moderating effect of the Christian ethic, priestly exhortations, saintly exemplars, and a calming, unifying ritual. The Roman Catholic Church labored to reduce slavery, family feuds, and national strife, to extend the intervals of truce and peace, and to replace trial by combat or ordeal with the judgments of established courts. It softened the penalties exacted by Roman or barbarian law, and vastly expanded the scope and organization of charity…
…If another great war should devastate Western civilization, the resultant destruction of cities, the dissemination of poverty, and the disgrace of science may leave the Church, as in A.D. 476, the sole hope and guide of those who survive the cataclysm. One lesson of history is that religion has many lives, and a habit of resurrection…
…“As long as there is poverty there will be gods.”32
Durant, Will; Durant, Ariel. The Lessons of History (p. 45). Simon & Schuster. Kindle Edition.
I suppose Buddhism does offer some of the same comforts, but it is also unlike every other religion with its refutation of eternalism (as well as nihilism), its teachings of kamma, the noble eightfold path, etc.
“Monks, suppose that this great earth were totally covered with water, and a man were to toss a yoke with a single hole there. A wind from the east would push it west, a wind from the west would push it east. A wind from the north would push it south, a wind from the south would push it north. And suppose a blind sea-turtle were there. It would come to the surface once every one hundred years. Now what do you think: would that blind sea-turtle, coming to the surface once every one hundred years, stick his neck into the yoke with a single hole?”
“It would be a sheer coincidence, lord, that the blind sea-turtle, coming to the surface once every one hundred years, would stick his neck into the yoke with a single hole.”
"It’s likewise a sheer coincidence that one obtains the human state. It’s likewise a sheer coincidence that a Tathagata, worthy & rightly self-awakened, arises in the world. It’s likewise a sheer coincidence that a doctrine & discipline expounded by a Tathagata appears in the world. Now, this human state has been obtained. A Tathagata, worthy & rightly self-awakened, has arisen in the world. A doctrine & discipline expounded by a Tathagata appears in the world.
“Therefore your duty is the contemplation, ‘This is stress… This is the origination of stress… This is the cessation of stress.’ Your duty is the contemplation, ‘This is the path of practice leading to the cessation of stress.’”
Chiggala Sutta: The Hole (SN 56.48)
Renaldo