It's a difficult situation, man; and none of us were there. All we have is a bunch of hearsay because no cop in his right mind is going to indict himself. There are a lot of variables we aren't privy to.
If I were this dude's brother, would I be upset that he was killed? Absolutely. If I were one of the police officer's kids, would I say they made the right move? Of course I would; because I would care more about my parent than I would care about some drunk guy.
I'm well aware of the fact that cops are conditioned to protect themselves, and conditioning, by definition, is mutually exclusive to judgment. So I don't necessarily blame them for their reaction, but it's not like we're not talking about South Central here either; it was Long Beach.
Realistically, my man, this whole situation has some pretty deep philosophical and political implications. I know where you're coming from, and I'm partially inclined to agree with you. The other half of me says that this is a litmus test that gives us a lot of information about where we're at in society these days. Either way, it sucks.