It is lamentably true that in most societies power is held disproportionately by male human beings. It evidences itself in different ways depending on the region, the country, the culture. I think it has gotten all of us, men and women, into a pretty awful situation, with the planet itself endangered. Patriarchy has not been demonstrably good for men in terms of longevity, serenity, wisdom, clean air, a non-violent society, etc. And this again is a cross-cultural reality.
Some men have more power than other men, depending on class, race, nationality.
But all men have more power than women do. I think that is why, in terms of the worldwide women's movement, you see this explosive creative energy happening cross-culturally from women. I am sure that, in overlapping ways, more than one of those theories is true. For example, among astronauts, physical strength is less important than physical endurance, but you still have more male astronauts than female astronauts, even though scientists will admit that women are stronger in terms of endurance and men are stronger in terms of physical strength. So when the job description goes completely contrary to the practice of male supremacy, it is ignored and male supremacy is upheld.