You should check out thenewgreen's comment below with regards to Asians in America- particularly the Chinese. As for the rest of your comment, why would anyone want to be taught that they can trace themselves back to slavery? Why would you teach only what you call "black" history and not African history as well as African American history? The story you want to tell is, "Long ago you were slaves who came from some backwater place that no one cares about, but despite that some of you have done amazing things!" That's a pretty bad origin story, by my standards. Way worse than the one laid out in this article.
I'm not arguing it's well executed. You'll notice I already covered that. I'm arguing it's atonement for former sins. While Asians were not treated well during the 19th c, their treatment (and that if the Irsish) is qualitatively different. Each of those groups came here willingly, and none was subjected to Jim Crow until THE 1960s (and even that was only nominal; segregation has been de facto ever since). Hell, even your town (in the North) rioted in the 70s when they tried to forcibly integrate the schools. You all are making an extreme false equivalency, like saying that there shouldn't be Holocaust museums, because Christians died during WWII also. Does getting a month of recognition advance the cause of blacks? Probably not. But would anyone else who feels slighted by this recognition trade places with them? Absolutely not. You're a comedian, right? You should check out Chris Rock's bit about the busboy who won't trade places with him. Its brilliant.