If gender dualism is accepted, as complementarianism demands it must be, it raises all kinds serious issues. It supports the simplistic and dangerous stereotypes of what a 'real man' and a 'real woman' should be. Any man who is more stereotypically feminine or any woman who is more stereotypically masculine are criticized by complementarians for not conforming to their supposedly God ordained nature - married or not. Thanks to the dualism inherent in the views of prominent complementarian Christian leaders like Mark Driscoll, John Piper, Tim Keller, and Al Mohler (wow, that's a lot of straight white conservative men!! hmmmm...), both sexism and heterosexism are alive and well in the evangelical culture today. It seems to me that complementarianism simply can't handle the actual multiplicity that is characteristic of real life. Its advocates fear genuine difference because their simplistic ideology is grounded in a Western theology obsessed with order - especially that sticky order of dualism or binaries. But as Brazilian liberation theologian Vitor Westhelle writes, order is "most often an ideological disguise for domination, repression, and persecution."
"Complementarity in this context is a more insidious concept because, like the idea of hierarchy, it naturalizes differences, but unlike hierarchy, it tends to hide power differentials. If women and men are seen in hierarchical relationships, the power differential is clear; if women and men are seen in complementary relationships, however, each appears to fulfill an important role as part of a larger whole and even the most subservient roles of women are justified. The question of power is thus covered up."