Most say there are 2 kinds of motorcycles, ones that have been down and ones that are going down. But I have also heard that statistically, if you haven't been in a car accident by the time you turn 25, you are playing the odds.
If you get into a wreck in a car, you have more metal that can provide protection for you. You get in a wreck on a motorcycle, your protection is basically what you are wearing on your body (t-shirts and flip flops seem stupid when you think about huh?).
But a motorcycle has better "escape qualities" ie faster acceleration, quicker stopping speed, and is a bit more nimble that most cars.
Many people say that they have a hard time seeing motorcycles due to their size and the speed they operate at, but these are probably the same people who can't see cars and pull out in front of them or change lanes without looking or using blinkers.
The risk is probably greater due the the fact that a motorcycle can go faster than most cars and more motorcyclists do exceed 100mph, but that doesn't mean they are going to wreck.
Just my .02. Have I written a lot and not answered your question yet?