This brings us back to "profiling", which has been an effective law enforcement tool since civilization began. It is still used but I don't know what they call it now in this PC age.
How often have we heard when police are looking for a serial killer, we find they have consulted an "expert", who tells them they can expect to find the killer will match this description:
" White, male, age between 34 and 42, have a couple siblings with him being the middle child, parents divorced, fascinated with cars, torture animals as a child, has been arrested before and possibly belongs to a cult."
More often than not, this profile proves to be quite accurate once the perpetrator is apprehended, by way of this "profile". So why should people be willing to to remain blind and stupid toward pertinent facts?