Jill Filipovic is a journalist based in Washington and author of the book, "The H-Spot: The Feminist Pursuit of Happiness." Follow her on Twitter. The opinions expressed in this commentary are solely her own. View more opinion articles on CNN.

(CNN) As progressive members of the House of Representatives traveled to Texas to see immigrant holding facilities for themselves Monday, ProPublica published a news story about a highly offensive Facebook group made up of current and former Border Patrol agents.

What they found is deeply distressing: Agents joking about deaths of migrants and calling them "floaters;" a photoshopped image of Rep. Alexandria Ocasio-Cortez having her head shoved down in Donald Trump's crotch; another one doctored to make her appear to be engaging in oral sex with a migrant; and agents suggesting someone throw a burrito at Latina congresswomen visiting a migrant holding facility.

Jill Filipovic

The head of Customs and Border Patrol said that the posts were "completely inappropriate" and "any employees found to have violated our standards of conduct will be held accountable."

The racist, sexist and cruel Facebook group has some 9,500 members -- clearly, more than just a few bad apples. There is something rotten at the heart of the Border Patrol and the entire agency must be held accountable for its toxic, bigoted culture.

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