It certainly is if in the process you establish a colony there and start taking lands by force. People who do that also try to erase any previously existing cul

It certainly is if in the process you establish a colony there and start taking lands by force. People who do that also try to erase any previously existing culture, good and evil beliefs alike. Otherwise, no. In this particular case, you'd simply be trying to get people to stop killing innocents in the name of spiritual/religious beliefs; something that is clearly evil and, in my opinion, so is anyone who tries to pretend it is not whether they believe that honestly or is just arguing in bad faith.