Needs to lose the car or his license whichever stops him from driving and if both options fail fuck him and his direct family back to Poland to make it clear you are and should always act responsible.
Generally an everyday occurrence, not worth getting that angry about. Looked like the d'n'b driver wanted to take an opportunity to make a little progress (i.e., about 3 metres) but is massively angry that it didn't work out. Any "merge in turn" design results in this.
What a knob. Should be banned from all roads.