You think no black people ever defended themselves against a white person trying to murder them by being armed? It isn't about changing the entire world at the barrel of a gun, it's about "not dying right now in this home invasion or assault with a deadly weapon." When someone is actively trying to stab, beat, shoot, etc, you, you can worry about voting when the ballots open, worry about court cases after this situation, currently you should be worrying about "stopping the threat to your life," so you can live long enough to make it to court or the ballot box. You seem to have a fundimental misunderstanding of what self defense is.