Demonic cultivation : WHY NOT???

So, i have been reading xianxia for a while. Trash ones, good ones(rarely) and it has made my judgement of right and wrong in stories little bad.

While ago there was post about some novel where mc doesnt "desecrates" people by looting them and i was like thats stupid, what are dead going to do with it, its clearly dumb decision especially in cultivation world where resources make or break you. Imagine my surprise when i read comments and they are actually in favour of MC. So my sense of right and wrong had clearly been warped. Surely its not dumb decision if quite a few people support it.

So i have been trying to read little tame , less edgy, murderhoboish xianxia and i cant help but feel demonic cultivation is like branch of cultivation which was going to form sooner or later. It doesnt has to do anything with being evil or a3. I cant explain it clearly,

in cultivation world beast, monster are like resources

Blood & Bones: Wines made from bones for martail artist. Blood for talisman making, rune drawing.

Skin : talisman making, as a page in book. I am sure people who hage been reading xianxia for long time have read quite a few stories where some top grade cultivation technique was written on beast skin or book which has pages made from skin of prehistoric beast.

Core: This is used as core of formation, foundation building pill and other pills.

Eyes: grafting them like naruto

Bloodline : how many mc have dragon, phoenix, void beast bloodline??

Organs : some organs are aphrodisiacs, some are used as medicine, poison, beast in general are tonic for cultivators.

Like look at above and ask, how much easy it is for cultivators to ask themselves "i wonder what will happen if we use human culitvator who gorge themselves on natural resources like no tomorrow??? "

Of course i understand, its morally reprehensible but think about it. Its like somebody invented atomic energy and someone was like damn, it can be bomb.

And about conscience and morality, beast at high level are like human in beast form or they just get human form. I am not saying its wrong to kill them but sometines author dont justify it well or take easy route. Ex: mc have pets which grow into cute* form if its girl and if its male it becomes more firece or demonic

So this post was, just saying author to go easy on demonic cultivation and maybe try more nuanced take on demonic cultivation. There is no need to go with taking virgin blood or woman, infants from get go. Sometimes they make demonic cultivators unnecessarily cartoonish evil to make them look *demonic

Also, any story where u really liked the mechanics of cultivation???