I dnt know who's wrong.
Motorcycle nvr see his right mirror whether any approaching car.
The car seem like moving very fast .
What I saw, from the first video
1. Motorcycle in front of a white car. The white car could be blocking the lady's eye view (cannot see got motorcycle)
2. Lady driver could be trying to turn right before the green arrow stop, so sped up
3. Motorcycle suddenly appeared while switching lane (suddenly review got one motorcycle in front of the white car)
2nd Video
What I saw
1. Lady driver is not watching her front where it was green light for another junction.
2. Lady driver could be using the phone, that's why didn't see in front where the other side car already moving and turning.
Should be guilty as charge.
The other black motorcycle very lucky