05:15 Classic road rage. You'd have zero defense for this in court. None. Someone else did something wrong and you enacted revenge by doing exactly the same; not only that, you put lives at risk. THIS is how people die. Think about it.
03:07 Thanks to their road rage the driver made situation worse and risked life of vulnerable road user.
Also note the driver's over-take of the cyclist: in the same lane, shouting abuse.
It does appear the cyclist made an error; same for the red car in front of them pulling out into lane 2 (how come you didn't chastise them and drive deliberately close?), but you have to control yourself. As with drivers, some cyclists are pricks who go out looking for trouble, whereas some make mistakes. Everyone makes mistakes. But whatever the case you made it worse by your own actions. Control yourself.
This silver van sat out side my friend's house for 12+hours, I went out side to find what thay where upto, told me to F**K OFF, then drove away