Really enjoyed your game, and I wish it was longer! That said~
No one needs to give an explanation/reason for making the protagonist they want to make. "The protagonist is female because I wanted it that way" should be more than enough. There doesn't need to be some song and dance as to why a writer chose what they chose, and it's honestly depressing that creators feel they need to wrap the decision up in a bunch of different reasons beyond "because I wanted to." There's already plenty of VNs out there that let you do the nonsensical pronoun thing, for goodness sake. People making demands really need to get over themselves.