Probably Being a DIK for your final question there.
I've often wondered how ... I guess pressuring it must be for the new girls coming in. They find out that there's (potentially) a massive harem that they're basically moving in with, and their fellow students are (potentially) all in it. How many are going to be thinking there will be an expectation for them to get involved in it too?
Some of them will feel more pressured than others (at least when they discover the harem), while others will be willing to join since minute 1 (well, not 1, but maybe 5).
The relationship with them will have a lot of branching depending on the composition of the harem.
Imagine Kalyani, for example.
If Saira is in the harem (and there's a harem in place), she will be the first to learn everything about it and will be looking forward to meeting the man who has made so many great women fall in love with him. If Saira isn't in the harem, maybe Kaly is a bit bitter about the MC ("Why is he with so many women, but not with my cousin, who is great and changed colleges to be with him?"). If the MC is in a monogamous relationship with Saira, or if he's single, or if he's in a monogamous relationship with another girl, the dynamics will change a lot. It will be fun to write all those possibilities into the game.
Every one of the new girls will have branches like that, depending on who is in the harem and who isn't. Relationship Points and changes in dialogue are how I will reflect it.
Feminism boils down to equal rights and opportunities.
But what you see in some games are man haters, and it's a power fantasy to make them dick lovers.
Christy isn't a man-hater, don't worry. She's straight, and she knows it (I won't repeat Kate's storyline, who isn't a man-hater, but a man-distruster). Her problem will be that she will think she landed in a cult. Until she doesn't understand the family dynamics when the MC returns, she won't be able to accept it.
Put yourself in her shoes, where you move into a house (for at least a year) like the Marks's estate. I would think the same.
Proper feminism is about women having the same rights and agency as men, and that anything a man can do a woman can do too.
A great example I remember seeing somewhere is this;
Forcing a woman to be a stay at home wife and mother is anti-feminist.
Forcing a woman to focus on her career and not have a partner or children is also anti-feminist.
So in terms of this game,
Forcing a woman into a harem with 20 other women is anti-feminist.
Preventing a woman from joining a harem with other women is also anti-feminist.
That's what I said about equality. I'm 100% for it.
No one should force anyone (man or woman) to accept the classical gender roles. But forcing them to reject them is as bad.
Equality comprises freedom of choice, and it's something objective and measurable.
Equity is subjective because it's based on
perceived wrongs committed on a collective (women, in this case).