Love cycling but to be fair that s a little annoying when you have 2 cyclists side by side and you can't overtake them. The driver was an asshole but i can understand his frustration.
If there isn't space to overtake two cyclists side by side, there isn't space to overtake one cyclist. If there's another car coming towards you while you overtake, you'd be endangering the one cyclist.
if there isnt enough space maybe just wait a bit untill there is, is getting to the next stop light faster so u can spend more time waiting there rally that fucking important.