As I said earlier, men and women generally tend to "dominate" different aspects of the relationship. "Providing" and protection are the roles towards which men, by any objective measure, most often gravitate.
What this means as far as the "balance of power" in a relationship is ultimately debatable.
It is still entirely possible for a "submissive" woman who defers to her partner on most practical decisions to have him completely "whipped" in other regards, after all. Lol
Have I ever denied that?I don't think it's true. I think MOST relationships are a partnership.
Just because one partner may or may not be more interpersonally assertive than the other, does not mean that the relationship is not still a partnership.
As Smoke said earlier, no one is dominant in everything they do. People have different aptitudes, and different interests.
They tend to take control over those aspects of the relationship in which they feel most comfortable.