Even Tyranids and Orks are arguably "more moral" than Drukhari! From either objective or subjective views on morality!

The Drukhari LITERALLY get off on being evil. They know they're doing wrong, and that's hot. That it keeps Slaanesh at bay temporarily in pure self interest isn't any greater a justification than the Imperium's uber-fascism for self interest or a Tyranid's hunger, and even if you assume it is, the Aeldar, who they could join btw, or Tau, at a minimum, are still a greater good!

Plus it ignores that the Ynnari succeeded and offer a viable alternative and every single Drukhari that didn't immediately convert is proving they are what they are because it is what they want to be. And the Aeldar and Harlrquins have ALWAYS had a way around having their souls consumed without indulging in hyper consent-free S&M!

I see the core idea of the take, but it's still just plain wrong.

His girl is absolutely going to sacrifice his soul to a dark and ever hungry god the MOMENT she gets a flimsy excuse and he needs to watch his ass.