Well, I'm sorry that that happened to you (in a no-responsibility-accepting way).

But the bad behaviour of some cyclists simply *can not* excuse the bad behaviour of some motorists. Some people burglarised my home, it was very upsetting, but I'm not about to use that as an excuse to shop lift. Some cyclists being stupid is *not* an excuse for motorists to go around terrorising cyclists with their cars.

As such "bad cycling" is, whilst a worthwhile topic of discussion, not really a useful part of a discussion about "bad driving".