Michelle Obama‘s brother has major beef with a private school in Wisconsin that he claims booted his two sons after complaints of racial bias in their curriculum.

According to reports, Craig Robinson and his wife, Kelly, are suing the University School of Milwaukee — a private pre-K-through-12 institution — saying the honchos excused their boys last year without merit … and in complete retaliation for something their parents brought to their attention.

The Robinsons allege that in 2021, while their kids were doing virtual learning, they filed two reports to school administrators detailing what they felt were examples of racist stereotypes and bias embedded into their lessons and homework assignments.

It’s not entirely clear what exactly they felt was problematic — beyond use of the word “plantation” and an apparent insensitivity to socio-economic status, as Craig explained on ‘GMA’ — but in any case, the Robinsons felt strongly enough to flag it to USM.

Shortly thereafter, the Robinsons claim the school sent a letter notifying them that their sons — who were 11 and 9 — were being dismissed … because of what the school felt was a hostile attitude and “complete breakdown in your family’s trust of and respect for USM,” per the suit.

The Robinsons say they’re shocked, as they felt their kids were “model students” and that they’d taken the proper steps to address what they genuinely believed was a problem.