If this were a survival manga, mc agreeing to letting them stay would be his death sentence, they have no survival skills,they kicked out their only protectors & they cant get along as a group.
Inviting them will just create chaos and theyll be a liability. But this is a comedy manga so everything will work out without anyone being killed.
Why would the MC care about the girls or listen to class president?
JUST LEAVE!
Then they want to take his house, that he build himself, for themselves... Well at least that is realistic...
I hate when shit like that happens.... Though it is the norm so there is no reason to be mad at it...