I like your post and agree with much of it, but I've thoroughly studied fascism, and the doctrine of fascism is deeply spiritual.
Mussolini did not just say "fascism is a religious concept", he declared that "fascism is a religion."
He used the state to do what he believed would protect people from liberty's that can be dangerous and lead to vice/sin that only enslaves people, making them less free in the end.
Mussolini enforced biblical morality so much, that he made swearing in public a crime. He allowed no pornography or entertainment that could corrupt innocence and stir up lust. Films and plays could not have swearing, blasphemy, imodesty, or promote what we see in today's entertainment industry.
The divorce rate in fascist Italy was tiny. Families stayed together and prayed together. schools had crucifixes on the walls , and the children prayed. There was no STD epidemic, few unwanted pregnancies, low suicide rate, no school shootings, no legal abortions, few unwanted pregnancies, no promoting homosexuality,and the state was supposed to be like a mother, protecting her children from freedom that can do more harm than good.
Responsible parents discipline their children and don't give them freedom to do much of what their their heart desires.
The fascist state was stepping in to limit certain liberties to crush the rise of secularism, that was sweeping throughout the world at that time, with bloody revolutions, torturing and killing countless millions of those whose loyalty was to God.
You are mistaken. Fascism is a religion, because its founder declared it to be, and his book "The Doctrine of fascism" is the soul of what fascism is, and it is deeply religious, spiritual, and calling all fascists to live a Religious life, to defend religion, and fight secularism. The Doctrine of fascism is less political and more religious. Much is about what the state can do to keep people healthy spiritually.
His doctrine states that the soul only reaches true perfection when the body dies.
Fascism condemns selfishness, individualism, laziness, lust, foul language, adultery, pornography, homosexual acts, blasphemy, covetousness, gluttony, cowardice, and disbelief in God, all of which the Bible condemns.
Fascism contains Theology, philosophy, religious traditions, Dogmas, Doctrines, and a sacred text which declares the life of a fascist is a religious one, and goes on to glorify the asceticism of the saints.
Mussolini went on to work with the Pope, give the pope an independent Vatican state, and pay the Pope reparations for what taly did to the papal states.
Christians, including the Pope, were very drawn to what fascism was because of it's religious nature. Pope Pius XI said, "God has given us Mussolini."