I'm in more agreement with you than I think you realize.

If you assault a cop because they're a cop, or a black person because they're black, or a white person because they're white ... that's one sort of wrong. A protester who starts throwing things at a line of cops guarding a federal building is this sort of impersonal assault

If you assault a person because of who they are individually, or their preexisting individual interaction with you ... that's a different sort of wrong. Someone who's interacting with a cop in a traffic stop, and things get heated and physical is this sort of personal assault.

Those are actions that occurred with a different sort of intent, and I don't have an issue handling them differently from a legal perspective.

Where we are in agreement is that different classes shouldn't be singled out for the first sort of assault. A "hate crime", if you will, is about harming someone because of a group they belong to rather than who they are personally, and it shouldn't make a difference what that group is. Rather than naming particular groups to be singled out for special protection, the law should be written such that it's about the intent rather than the group.

Also, FWIW, most police assaults are not "don't like cops, so you assault one". They're people who resist arrest too aggressively. It's a personal assault. The issue the reclassification of the law is attempting to address, is when non-injurious physical contact with an arresting officer adds a felony charge to a petty misdemeanor.