Nor is there a way to please the NTR lovers that would work for the Romance lovers either and I have seen as many NTR lovers ask for NTR in games that were more romance based.
Well no worry this shitstorm will never disappear as long as both genres exist, since the needs of the two player bases are at least partly mutually exclusive.
NTR lovers like the women in their game to be (easily) corrupted and enjoy being blackmailed and/or raped, well if you are a romance lover, why would you like to romance a woman like that? Rescue her? From what? She is written as a cocksleeve, or someone that is easily turned into one, that enjoys to be abused so needs no saving anyway. Even if you save her she will run into someone else that will be willing to abuse her unless you lock her up in your basement for the rest of her live. Sounds like a fun loving relationship.
To have a trusting loving relation with her? See above.
Basically to make NTR work for romance lovers in a romance based game, you either write two games where the females have very different characters and on non NTR path you never ever see anything that clashes with the romance-able character and even then players may have problems with it if look on NTR path. The other possible option could be to write one consistent character for the females, but then NTRíng them should be even harder to do as romancing them and it should take a long long long time before they get corrupted or like it. Now I do not think most NTR lovers would like that and would have to wait for their nice scenes that would satisfy their needs even longer as the romance scenes. Or write a character that is very easy to NTR but then is as much an easily turned cocksleeve for MC and forget about her as a love interest as dev.