I hate NTR games where MC can't win.
A proper NTR game should be winnable - just it shall be hard to beat.
Leane 2 is a good example (on "black" difficulty). On a few initial throughways MC will be cucked. But if played right mc could evade NTR.
100% you get it.
This is challenge mode for those who want to fight for the love interests, and if you fail there's consequences.
Other game that are similar that I'd recommend is "
Oyako Rankan" and "
Survival Mission Z"
Both 100% avoidable ntr, and in Oyako Rankan the MC can impreg all the love interests + bonus characters if you play very carefully, which makes it one of my favorite.
Survival Mission z I listed because it's the base line of NTR's that I find accetable, where the core mechanics is simple enough in just having to beat the game, or collect X amout of Y before the stealing happens.
As you said NTR games were the MC can't win, is just not as interesting for me, and for games that are like that I just glance through the gallery instead of actually playing.
To each their own though, can't win them all.