The Alt-Right adds to its glorification mythology the Great Roman Empire. They gave us the gladiatorial games, among other "civilized" practices. How does the slave colony of Haiti compare to that? I'm not pleading ignorance on their behalf, I'm simply stating that you'd have to look at the culture (what was left of it after being pressed into slavery), and the cruelty inflicted on the slaves in that colony as opposed to (ugh!) the more humane treatment in the American colonies. There have been historical dramas produced about that era. I remember for instance the Marlon Brando 1969 film of "Burn!" which I recall particularly for it's cinematographic bleakness. Of course, it was "fiction," but it wasn't drawn from the Planet Melmac.
Would we condone it in any way? No. But the earth has been a killing field since long before the Great Romans. What about Castro's "Day of the Machine Gun?" At least consider how Castro grew up, and the conditions of Cubans in the countryside during the '40s and '50s. They say history might have been different if Castro had been recruited by an American baseball team. What would've happened had USC accepted Trump to their film school?
I suppose the British reader was shocked and stunned when Jonathan Swift suggested eating babies because of the Malthusian imperatives leaving "no room at the table." But that was satire.
Anyway, using historical analogs finds wide usage in political discussion, as if there were such a thing as anecdotal inference. Finding analogs in history for some sort of holier-than-thou moral comparison is useless. And, as I said, naming the street in New York was a local decision. What does it do for those residents, to have that street name? I don't know, don't entirely care, and don't presume to judge.
What unsettles me more is how some part of the electorate tolerates and coalesces itself with the extreme Right "Neo" groups who deny the Holocaust and elevate Hitler. Or for that matter, a Chief Executive reported to have kept "Mein Kampf" by his bedside as an "important reference." Having it on a bookshelf is one thing; taking it to bed every night is another. Hopefully, he never thought to read Goebbels' essays and notebooks -- he might have become more expert at the Great Lie than he is at the moment. But it's becoming more and more obvious that he's not a voracious reader.