Because this Pope shares common cause with marxists and spends a good deal of his time condemning capitalism and free markets (you know, the very things that actually pulls people out of poverty)
As to the murder of some communist Jesuit priest years ago, I have no sympathy whatsoever. These priests were allies of the Soviet Union and enemies of individual freedom, free markets, etc. It is actually too bad more weren't knocked off. Not surprised this Pope would support these rogue priests - considering he is essentially one of them.
I believe in the same event where Morales presented that to him he described “unfettered capitalism” as “the dung of Satan”.