'Male nurses' is like saying 'black friend' or 'gay roommate'. The added label does not promote understanding. If anything, it only promotes positive and negative stereotypes, both of which are harmful.
'Murses' is the jaundiced portmanteau of the profession: murse, from man and purse, or alternatively, male and nurse. Please stop...it's really insulting.
May I call female MD a 'foctor'? I thought not.