Most foreigners got the help from their government, and most of the time they got on a ship and went to cyprus. The lebanese government can't just ship their people out to cyprus, when Israel finds that out i'm sure the dock would be bombed too.
Where are the residents of lebanon supposed to go when their roads and airport are bombed, walk out of the house and down the road to nowhere. I dont think you understand, if these people leasve their homes they are still at risks of being bombed, the only way to really be safe is to get out of Lebanon, but that sure as shit aint happening if you're a native.
All in all, lebanese civilians who have no part in this whole conflict and want to live normal lives are pretty much fucked.