Its a plain and simple fact. Women and Men are treated differently within the majority of Evangelical Protestant Churches. Men hold virtually all positions of power and leadership. In many denominations men hold over 99 percent of pastoral positions. Even when men and women hold very similar jobs, men will earn 25% more than their female counterpart.
Many church members consider this to be unfair. Especially in light of the advances that women have made in the secular workplace. In other words, in the day to day workplace women are considered equal, but in the Church women are often seen as second class citizens.
Opinions about whether this treatment of women is Biblical or not are irrelevant in the framework of this discussion. It is simply a fact that this treatment bothers certain people to the point where they drop out of the organization and never return.