Submission implies that one sex is better than another and has certain rights to make demands of the other. Equality implies a balance of power. Submission means the loss of personal rights and personal control over one's own actions, thoughts and feelings. Submission is degrading. Mutual respect is life-giving.
Fear is the dominant feeling in a relationship based on submission.
The dominant feeling in a relationship based on mutual respect is safety. Trust cannot grow without the element of safety. Being a submissive female in a relationship represents a loss of personal freedom to make choices and the loss of the opportunity to discover the very best in oneself. It also diminishes that opportunity for self-discovery in the male partner because he is not challenged to be all that he can be. He becomes dependent on the female partner to be there to answer all his needs.