As a cyclist this "bikes are cars" myth leads to a very unsafe experience for cyclists. I know it's what the current laws say, but I can't comprehend how folks

As a cyclist this "bikes are cars" myth leads to a very unsafe experience for cyclists. I know it's what the current laws say, but I can't comprehend how folks don't see how false it is. A bike is much closer to a really big person running down a sidewalk than a car or motorcycle. You basically take the person add twenty pounds to them and 12 mph. Versus a car you take a person and add 2000lbs to them and 40+ mph. I'm not advocating for bikes on sidewalks, but it seems less ludicrous to me than bikes on streets with cars. I'm for the standard line of though that bikes and friends belong in a 3rd flow of traffic like the Dutch do it.