So basically, we're at the point where we need to uniquely mark our luggage and then if our luggage is "lost" have an agent who shows up at the liquidation center, identifies it, and then seizes the luggage?

Or you could just put an airtag into it.

I put AirTags into my luggage and it just made me stressed for both legs of my trip. One of my family’s three bags didn’t appear to be moved to the next plane and I just had to sit there and hope that the AirTag wasn’t picked up for some reason. Everything made it to my destination and back home without issue, thankfully.