But what about the fact that since car A's fender (on the right corner ) hit car B's driver's door. Does not that show that B was too far up to be at fault? Meaning if it was A's door and B's fender that would show that B was cutting A off?

yes, the diagram is right on!

the green vehicle cut off the yellow vehicle, had no right to squeeze in on the right like that but the yellow still had to check the blind spot. question is since yellow had his right turn signal turned on then isn't the green car at fault?

It is a single lane. The lane is large enough for a second car to fit in on the right when the first car is all the way to the left. The markings are one lane going in opposite directions separated by a yellow line in between.

Hello, I haven't been able to find a case like this anywhere on the internet so far. A car was traveling in the left side of a one lane street and went to make a right turn into a plaza. When making the turn he hit a car to the right of him with his right fender hitting car B's driver's side front d...