"DUmmies" if one looks at them simply for amusement and entertainment.
"DUmors" if one looks at them as a cancer on society.
"primitives" if one looks at them from the anthropological perspective.
"proglodytes" is very good, excellent, perhaps the best term invented, but it's still too new; usually a term takes several months to catch on.
<<<has never heard of "DUmmorrhoids," and will have to think about it, but it's good too.