There's no use arguing about whether the guy in the car is right or wrong. When you're riding a motorcycle you need to watch out for yourself. This is why you don't move to the far left when turning right. It doesn't give the idiot in the car the chance to pass on the right. Stay in the middle of the lane and make the turn at whatever speed you need to take it at. It will keep you alive much longer. Not every turn has to be made like your on a race track.