I agree with the arguments about moving cars pulling into the bike lane, doors opening, etc, BUT if you can't avoid smashing your bike into a parked car with enough force to go through the rear window, then you definitely aren't skilled or responsible enough to be riding in the city.
It would be instructive if more people took motorcycle safety training. They really emphasized that you should ride as though there could be a dropped load of concrete, boulder, or pothole around every corner, every blind hill, or every car, and stop accordingly.
I think this is mostly because the consequence of hitting debris is much more likely to be fatal on a motorcycle, but it would be good advice for anyone, really.
Second, a huge part of safely operating any vehicle in an environment (especially a chaotic one you share with cars, bikes, and pedestrians) is awareness of your surroundings and the ability to avoid collisions. This is seriously driving / biking 101.
If you are zooming around on your bike and just thinking "hope no objects / people / cars are sitting stationary in my way because there's no way I can stop and I'll definitely hit them", then you're a dangerous menace.