It's a completely clickbait headline (like most things you'll find on sensationalist outlets like CNN). If you read the full article, there's not anything like

It's a completely clickbait headline (like most things you'll find on sensationalist outlets like CNN). If you read the full article, there's not anything like a claim that "math is racist". My only takeaway from this is just another point to deduct from CNN's credibility, rather than that this author is saying "math is racist".