This is such a fascinating and interesting question. I highly recommend reading the book 'Automating Inequality'[0] if you haven't already. My initial reaction to this question was 'I certainly would prefer groups of humans making collective decisions over an opaque, proprietary, algorithm'. But then I also think back to the latest internet firestorm of the woman calling the police on black barbecuers over charcoal (this happened a block from my house). Can we actually trust people en masse to make collaborative decisions that generally avoid bias? Definitely not.

I think your comment may have changed my mind about the utility, objectivity, and overall value of amber alerts...

[0] https://www.amazon.com/Automating-Inequality-High-Tech-Profi...