So, WG07 UTF. You claimed to "know the cyclist" and stated their "life was in danger". Let me tell you something. The world is watching this video, of a public place, with you in it. That probably includes the police and every upstanding citizen. So if you do anything, know the world is probably watching YOU doing it - ain't democracy great.
Yeah, the Peugeuot came from a single lane to a dual carriageway and was drifting to the left lane, which he should have had a clear path do as no vehicle is allowed to undertake him. Meanwhile motorcyclist undertakes him while using a lane for left turn only, and then he has the nerve to honk his horn at the Peugeot. Poor judgement from the Motorcyclist and he deserved all he got.
You nearly crashed into him while he was on the roundabout and you was entering it? It would have been your fault.
Sounds like YOU need to calm down.