Your faux outrage is cute, but not grounded in reality. They're not demanding anything, at least not with any potency. They made a request to the employers of a group of men who made a very public demonstration while at their workplace. The employers did what they felt was best and denied the request. Cops didn't ride up in there and demand apologies or blood offering at gunpoint. They made a request. They, as an organization which has the avenues and the opportunities to express the organization's views in accordance with their own first amendment rights, made a request.
Let's review: their organization has First Amendment rights. The players paid by the Rams, for all intents and purposes, do not have First Amendment rights while they are on the clock for their employer. So a group with collective free speech rights asked an employer with free speech rights to discipline their employees who used speech when they do not have free speech rights. The request was denied. Outrage averted (unless you're Greg or a race baiter or some sort of leftist who thinks that police are the greatest evil of our time [look, I can be dramatic too!]).
You want it to be about free speech, so framed everything here around free speech. The only people without free speech rights in this whole mess are the players involved, so I'm still not sure why you're so butt-hurt.
P.S. If you've been around these parts and paying any sort of attention over the past four or five years, you'd know exactly what I think about police, police states, militarization of police forces, etc. Regardless of how little you know about them, my thoughts on the subject have no bearing on what I think about your arguments, which are silly.