Comments of chapter undefined of Douluo: I Am Unparalleled in the World

i just can't figure out how does his brain grow. from the first chapter till the MC was about to die from poisoning himself. 1. The MC just wants to get something for nothing. 2. When they refused to give him they became hypocritical and he wants to kill them. 3. When they didn't save him he just hated them, why they should save you, who are you to them.