> ...governed by the exact same laws as vehicles. No exceptions.

So I should be able to ride my bike on the highway?

> Bicycles are part of a larger system and that system runs on expectations.

True, but the current disregard to those laws means that expected behavior is inconsistent with the behavior mandated by laws.

> Adding a new class of movement rules for bicycles which are sharing lanes with cars makes this system much more difficult to predict and anticipate for everyone.

Bikes already move and behave differently, just due to mechanics and physics. Bringing expectations in line with this and normalizing behavior INCREASES predictability.