[Spivak]

Because racism is about harm, not an estimation of a thing's motivations and prejudices -- which it's why it's still racist even if you didn't mean it or didn't know. It doesn't actually require a mind at all. Anything that confers, amplifies, or perpetuates harmful stereotypes or negative associations with people of a specific race is racist.

The thing you're calling racism is actually hate speech as it's typically defined in law.