Because they used the dog whistle too often. I've been saying this for a while now. The best part of having everything be racist is that pretty soon, nothing is. Same with sexist. Same with whatever label you want to use. Eventually, people get numb to it and you destroy your own movement.
Yeah i agree..... thats why the grievance industry has went off the fucking deepend.... Its very hard to find legitimate cases of prejudice in this day and age, so now they claim just about everything is biggoted, and like you said, when everything is racist, the term just becomes a joke.