Watched the video and iot was a good story, so congrats on that and kudos for going car-free. Your comment about how commuting is possible for a lot more people than those who think it is is right on point.
I wish there were a good study (without the confirmation bias that exists merely from reviewing police reports) that would confirm or ebut the opinion experesed by the officers you talked with. If I were to bet, I would guess that by a small margin the majority of accidents are caused by improper cyclist behavior rather than motorist error. Far too many cyclists behave like pedestrians rather than like vehicles, and ride on the sidewalk, cut through traffic, and ignore traffic control, resulting in accidents. Drivers, of course, are far too inattentive as well. As I have told my children for years, you can only control your own behavior, not other's.