I haven’t read many of the responses here, due to the high amount of arseholes on the forum.
After watching the video, it is clear that the man who got out of the car committed an act of force against the cyclist. This is not acceptable.
The cyclist chose to chase down the car and swear and shout at the driver. This is also not acceptable.
The whole situation cou7ld have been avoided if the cyclist had just ignored the car. He chose to remonstrate the driver, then chose to chase after him and become aggressive.
They are as bad as each other, but most conflict can be avoided.
+1 the only thing I could to add to this is he could have reported it to police rather than going after the driver. IMHO you lose any moral high ground being confrontational