Well Tony if you are pushing for the practices and beliefs of pre-Vatican II we are not likely to agree on almost anything.  
As for biology indicating roles in humans-that is nonsense & already proven by science to be nothing more than false stereotypes made by men to restrict women's opportunities in the world & in religion.  Women lead as well as men and men are as nurturing as women when they are not shunned into being dis-attached macho men.  God does not state men and women have different roles to play in Genesis when he makes Man - male & female.  Jesus commands all Christians treat everyone exactly the same way they want to be treated or they sin. So that includes same sacraments.
Almost all animals that mate for life, both genders share the responsibilities of raising young equally & hunting & preparing their home.  Responsibilities are not divided by sex.  In fact we identify species by sharks, or ducks, or snakes-not that creation is female ducks & that one is male ducks.