A gripe I started having with harems is not only that they have a tendency to turn into pokemon gotta catch them all and they all blend into one character who's only mission is to motivate the mc. Its because they are a extremely difficult story mechanic that very rarely gets used correctly. It devolves into a similar situation as nationalism in novels where the country didn't do shit for you and you are suppose to be a strong puppet to help your fellow countryman even though a few chapters back they weren't doing shit for you whilst you were in poverty. The harem members are the same when its on a rape, marriage, or sacrifice timer. Its especially screwed when its suppose to be a mc who fights against fate since these very harem members takes on the totem of fate if you look at it closely.