So, my opinion on Anti-NTR.
My main issue is that they take the assumptions within the game, see competition in RL, and assume 'losing' means weakness. Plus the excessive kinkshaming (which is unacceptable).
The works also have problems. They don't really tackle the genre and its tropes, it is just quick vapid power fantasy.
You can desconstruct NTR down to its core, by either form or shape. Some think portraying the usual MCs as bad is 'good' (while I think it is bad), while others do not.
But it does make sense for most of them act like that since they dislike the genre and it is more due to the fear of being cheated on, it carries an implication that humans as a whole should never be trusted, and well...when you can't trust others, you will see an ease on dehumanizing and objectifying them, after all 'loyalty is a weakness'.
Reeeegardless.
Honestly the genre is disappointing. I would love to see a tale in which the MC listens to the usual 'bully villain' spouting pseudo social darwinistic bullcrap and acts accordingly. To which...well, sure, he loses the moral highground, but 'If the world rewards selfish, manipulative people, why wouldn’t he become one?'
In a sense it would be nice. He does become pro active, learns, grows out of his bullshit and becomes 'better' in regards to his environment.
And from outside we are just annoyed...but in which anyone with a modicum of common sense can understand that you can't endlessly demand morality if morality leads to nowhere.
The corruption starts with the FMC and ends with MC embracing it. Does the fact he is no longer 'better than them' or being the 'bigger person' has anything meaningful? Morality is Fluid. Assuming it is absolute is what leads to Anti-NTR in first place.