"Dude, where am I?" "We don't know." "How do we get back to Mother?" "We don't know, or we would have gone home" "You say 'we', how many of you are here?" "Millions"

"Is there anything to eat? I'm so hungry I could eat a horsefly"

"That depends on how long we have to chase you around for"

While this is technically accurate, the OP suggests more that they survived by eating their own corpses. There was just one source of ants to the bunker; living workers ate dead ones, presumably without murdering them first.