Cannibalism has been reported to have occurred in almost all of the major famines. Examples are the Soviet famine of 1932-33, Great Chinese Famine of 1959-61, and the famine which resulted from the siege of Leningrad. More recently a few unconfirmed reports have come from Venezuela, but I am not sure about their authenticity.
http://townhall.com/tipsheet/mattvespa/2016/10/26/reports-cannibalism-in-venezuelan-jails-n2232683
Cannibalism is a normal thing in nature where there is no food to survive on. There have been ocasions where cannibalism has occured how with animals ans also with humans. There's nothing wrong about it if there is no food, I don't get it why are these people so afraid of that.
You don't know why people dislike it, so would you kill a man/woman/child then chop them up and eat them?