I have been in [dozens] of fights

I doubt that. Why would one man have been in dozens of fights without starting at least half of them? Care to explain why you're any different from the deceased? Trying to be a bigger man by brawling more than Andrew Jackson?

It's difficult to imagine you'd say that was acceptable.

Nah, that's your misunderstanding of, and attempt at a 'gotcha' directed at, 'White supremacists', etc. Truth be told, we don't like degenerate Whites either: after all, if you're that aggressive, you should have been bagged long ago, and I'd have zero problem with any groid that does the service. On those rare occasions we invoke the words 'Master Race' (Shock! Horror!), you're evidently not part of it.

Are you suggesting it's ok to kill someone who keeps approaching your fiance, etc.

This scenario has nothing in common with the event in question. (Although I have zero problems with someone being bagged if it can be proven that he's persistently being a pest of that nature.)

Now, I doubt that any decent, moral person has any problem with some abeed getting bagged who, after sexually harassing a woman (that alone enough of an offence for many feminists and some others to want a man put to death), proceeds to throw punches for no justifiable reason. Either the former or the latter is enough moral justification for bagging someone, let alone the both of them combined.

More to the point, regarding your last line?

Why are you so protective of 'black people'?

It's because you think that criminals are the real victims; that the police are the real criminals, etc. in typical lopsided liberetardian-progressive fashion, right?

Furthermore, your attempt to bring race into the equasion is merely another attempt to advantage you in an argument with 'White supremacists'. Him being black—while drastically increasing the chance of him being a piece of shit to anyone who isn't an egalitarian low-IQ moron who lives in a fantasy world—doesn't actually mean much here. Nobody should be free of the consequences of immoral and stupid actions, whereas you're clearly implying that we view all nonwhites as guilty and all Whites as saintly, which demonstrates your lack of understanding. You think we really value the lives of Antifa Whites or White queers and trannies, for instance? Nay, it wouldn't be an understatement to say that many of us rightly view them as worse than many nonwhites: I respect Erdogan or Assad more than some Antifa crackhead obese pansexual tranny. All that 'White supremacism' really entails here is that I consider a White Antifa crackhead obese pansexual tranny to have very marginally more value than a black one, since the latter would be even more low-IQ and otherwise incompatible with civilization than the former.