>>12182704>there are also multiple feminine Pokemon which ARE female only.Yes, and more than half of them have a male counterpart (Illumise, Vullaby/Mandibuzz, Nidoqueen, Wormadam, Miltank, Latias), or is feminine in a way that wouldn't work for a male (Jynx and her breasts, Froslass is based on Yuki-onna, Vespiquen is the queen bee).
The ones which come into play purely on feminine grounds is Blissey, Lilligant, and Cresselia.
The only way I could see it being female-only is if they released a male-only counterpart.