Tell us "what really matters" so we can laugh at you, chief.
Your buddy oldschool seems to think "what really matters" is that people stop defending themselves altogether; thus avoiding the "slippery slope" that self defense leads us down. Your friend sarhag seems to think "what really matters" is that the horrible Zimmerman fellow suffer.
Nobody on "your" side seems to think the law "really matters" at all. You seem to think all that really matters is that a black criminal died, and for that someone must pay. You all seem to think the really important matters as they pertain to this situation are your bizarro fantasies about what transpired prior to the shooting, which you maintain negates Zimmerman's right to defend himself.
But as usual, when you're talking about removing a person's rights, your grasp of the actual law and, in fact, reality, is tenuous at best. The things you think "really matter"...i.e., revenge, gun control, protection of criminals...really have nothing whatever to do with this case.