I agree with you.
These damn Bikers never ever see while turning and driving.
I also faced this type of situation but was saved by the grace of ALLAH. My car's bumper was touched with footpath. just because of a stupid biker. I also drive bike but follow rules properly.
He was driving on extreme left side. I was driving in fast lane at the speed of 80km/h. He suddenly came in the fast lane and braked for the u turn. I pressed the brake pedal and steered the car on full left side and car got outta control but the car was low speed and it touched with foot path. and he was smart. he took the u turn and was trying to run away.
I floored the car after him. stopped him. and he wasn't admitting his mistake. and was using offensive language and rude behavior. So then I beaten the Sh*t outta him.
never ever put your life at risk for these damn stupid bikers who doesn't know how to drive.