That's... idiotic. [ Forgive his bluntness. Or don't. ] For one thing, women shouldn't be limited in what they choose to do. For another... magical influence hardly works like that. If anyone was using blood magic to influence their position, a visible demon would not be far behind.

[ But then again, perhaps a world without magic needed to invent odd myths to maintain some degree of order, though he failed to see what denying women positions of power accomplished. ]