Those ads for laundry powders which leave your sheets "white than white" weren't referring to the racial qualities of cotton. "Language that equates white as positive/ black as negative should be questioned as they contribute to unconscious bias." but the answer to that questioning can be, "No, this is not racist."
Turning clean bedding into racism would be overkill. Overkill is a bad thing, as it increases inter-racial tensions, it doesn't decrease them (armies carrying out revenge raids also increase the level of violence in a battle situation)
There are, of course, keyboard warriors who welcome and encourage those tensions, presumably because they think all-out warfare will lead to success in forcing the solution they desire. They are wrong, as shown by various attempts at genocide to remove populations considered "undesirable" for one reason or other.