Even Big Bird had to leave the nest Chic.....because he outgrew it and mama would have died exhausted trying to keep him fed and starved to death herself.
just because something happened to him once, doesn't mean it will repeat....that was 8 YEARS AGO.... you live in a different world now.
the thing is you can see and feel how this entire scenario with him consumes YOUR life, he is not a child. however, I think giving him a ride is fine, but he has to realize for himself that he is being selfish and you are not taking the crap anymore. we all have our saturation point and I think you have reached yours.