Hi
I would consider the accident would be classed as 50/50 fault
This is based on the video, which shows both vehicles were moving slowly, the taxi driver was in wrong lane but you should have been aware of your surroundings, and seen the taxi driver and you did steer left into the taxi
Also, it is less money for insurance companies if classed as 50/50
I know many on here may disagree with me and I appreciate you may be looking to the right but you do need to be aware of what is in front of you and only move off/enter roundabout when it is clear to do so
Many thanks
John