There's never been a real matriarchy. Matri-focal or matrilineal cultures are about balance and power sharing. The small self-contained world of Femdom is not large enough to generalize, in large part because it's a self-selected group and a comparatively small one at that. Most people who participate in that lifestyle don't do it 24/7 either.
Partnership is always better than domination - and even the domination of D/s relationships are chosen and therefore a type of partnership.
I value time talking to you, and discussions like these often allow me to clarify my thoughts, offering a type of "workshopping" for future stories. But thanks...