The point isn't that every single white girl that goes missing gets a search party. But if you're a white female, you have a higher chance of someone looking for you than if you are a minority.
Obviously, there's a few different categories that will make you more or less likely to get noticed.
But in comparison to minorities, you just don't see many stories getting wide coverage.
For instance.
There was an attractive black lady that got killed a week or 2 ago. She's an instagram "influencer" with like 2 million followers. She knows some celebrities in the hip hop world.
Some guy came to her place, strangled her, and then stabbed himself. Did you even hear about it?
https://people.com/crime/ohio-family-deaths-presumed-murder-suicide/