christian missionary work is a millennias-long social experiment to find out what the dumbest thing someone could possibly do is
reading about foreigners detained in North Korea, and a solid 40% of them were just missionaries
"it's my god-given right and duty to force my religion into these people, whether they want it or not" is an attitude which has led to many millions of atrocities over the millennia, but it's also led people to do things like travel to They Kill You Here Island (you'll never guess what happened)
Ah yes because the only thing they do is force Christianity onto people.
They never feed anyone, they never bring medicine, they never bring trained doctors to help treat epidemic diseases or to administer aid, they never bring aid supplies like clothing and sundries, they never help build anything like shelters or water pumps and purifiers or anything else like that.
It's all just about forcing people to convert, never helping your fellow man.