I'm sure you could have seen that coming from a mile away, and the NYDN has the details here (or here):

City education officials are investigating the claims of a pair of boys from Oklahoma who moved to Brooklyn to experience diversity, and instead say they got schooled in racism and violence.

Mom Lisa Brown, 33, told the Daily News she relocated her family from their small Oklahoma town so her husband, a Brooklyn native and social worker, could more easily find work and her sons could experience different people and ways of life.

Brown enrolled her sons, Sloan, 12, and J.T., 13, at Ebbets Field Middle School in Crown Heights. But when the boys, who are white, showed up, their mom said, they got a chilling indication of what was to come.

"Oh my gosh, we are going to have fun this year," a security guard muttered, according to Brown.

Things quickly got worse.

Sloan was beaten mercilessly, called "cracker" and "white boy," and chased into traffic by his new classmates, his family said...

You won't believe what happened next! Oh, sorry, I forgot you're familiar with "multiculturalism". Yes, you're right. The school officials did nothing until this got press attention. And, none of NYC's "civil rights" or "human rights" organizations are involved. And, yes, the victims will eventually be blamed and perhaps even called "racists". And, of course, this whole story will fall down the "liberal" memory hole since, well, see, it's like this...