They are forgetting the premise about the protagonist's ability to impregnate, the power he has only allows him to impregnate women who end up loving you. The 2 cases seen are through manipulation like Jessica, Madison and Veronica, they were manipulated little by little until they came to love you. The other side is those who loved you without manipulation like Emma and Kanna. While characters like Gwen and Chloe are broken, they have no personality, that is the power of the MC speaking, in previous versions their panel did not have hearts, they had broken lamps, and as the grandfather said that is irreversible therefore they will never be able to get pregnant. Other similar characters are Ami and Hana, they do not love you, it is more a feeling of loyalty and debt. The women from whom you buy their houses and bring them to the mansion are also controlled. That is to say, those who could get pregnant already did so in the second act.