Is Saitama not strong enough?

little girl hits an exhausted baldy

Don't worry. He does not show any aggression and was being easy on her. He knows the world will turn against him and he does not want to risk it.

Since when dose he care he did make the people in his city hate him (didnt make them someone put the blame on him and he went along with it) for the asteroid afther he saved them

Ok.