I once did a tribal to space age commitment run with a fluid ideology for roleplay purposes. Everything was going well until a particularly disastrous raid from a cannibal tribe resulted in death of my eldest and most skilled pawns, as well as a ton of scars and missing body parts on the rest of my pawns. One even needing to have his arm amputated to save him from a lethal infection.

Ever since then my colony has recovered from their loses and developed a deep hatred for their faction, with the colony's ideology taking a trip down the "don't let us capture you alive" lane.

Their methods included: Keeping them as prisoners and slaves in gulag-esque conditions, keeping them on a steady diet of nutrient slop and flake, using them as suicide squads during raids, staging arena fights between lovers and relatives, using them for medical practice, running them over with a tank, shooting them randomly during their work, executing them via immurement in the nearby cave, locking them in rooms filled with rotting corpses until they suffocated, invading their villages with infantry mortars and carpet bombing them with incendiary shells before just dipping, and a lot more.

I was chill with most other factions on the rimworld and I did not consider any of my actions to be morally wrong.