Pedaling amongst idiots

I love cycling more than anything, I think. I can think of few things that give me such a sense of inner peace and serenity or that allow me to satisfy my need to always explore. That said,  I don't much like cycling in London, and I like it less and less as time goes on. Unfortunately, in the effort to get more people cycling,  which I support, they have been entirely unsuccessful in getting past the very strong "me first,  fuck you" attitude that is so prevalent here. It's really only London. Everywhere else I've cycled in the country there exists the feeling of some sort of camaraderie I'm used to amongst cyclists,  but not so much in London and almost never at rush hour. I was cycling through the City this evening,  which is always a nightmare of dodging pedestrians, taxis and buses,  when I see this guy on a Boris Bike crossing the road at an angle from my right. At the same time,  traffic has stopped and a pedestrian walks out from between parked buses. I stop,  as I don't want to hit the pedestrian. The guy behind me,  a rather pudgy man in a sweatshirt wearing headphones, runs directly into my back tyre. Rather than apologising,  he starts yelling at me for stopping for the pedestrian and says something about I'm not supposed to wait for pedestrians as it says it in the Highway Code. I say that one is always supposed to wait for pedestrians and that he hit me from the back because he wasn't paying attention and that it's his fault,  as that's how it works. He starts arguing again so I say you don't cycle much,  do you,  CLEARLY,  to which he gets up in my face and says oh yeah,  what's that supposed to mean,  to which I reply you are exactly the sort of stupid fatass who gives cyclists a bad name,  fatass. He says,  oh yeah,  well my bike's not broken (nor is mine,  and his weighs as much as a Buick, so I would expect it would be fine). At that point though the light changed so I zipped off. I hope he gets hemorrhoids.