I tend to agree, but I can see both sides. There is also very little (and, as far as I know, zero required) bicyclist education, and many bicyclists make little attempt to drive predictably and safely either out of boldness or ignorance.
Similarly, while stricter rules and enforcement for automobile drivers is warranted, I think the same goes for bicyclists. I don't think it's appropriate to consider bicycles as "first-class vehicles" in all situations, namely in the dangerous situations you list (speed limits >~25mph, multiple automobile lanes, etc.). In those situations, I think it's reasonable to ban bicyclists outright, for the safety of the bicyclists and automobile drivers. Of course, along with that is the need for dedicated bicycle lanes, or better yet, completely separate thoroughfares for bicycles.