Kokichi’s Grape Panta's feed

Okay but what abt overpopulation?? I get they already unlocked floors 1-20 but according to the movel only like the first few can be used for housing and agriculture and whatnot. Ig with the existence of new self sustaining floors there likely won’t be a food crisis, but if so many people are joining at a rapid rate and only the hunters with titles can go past floor 20 bc of the zombie illness/the library rule wtf is gonna happen? Another