The solution is tough, because we didn't mind them getting too big. For example, a few years ago, I was dealing with an abattoir that allowed us to trace their products. It was very easy. The service and delivery were excellent. When the fact that the abattoir delivered traceable products became known, it was bought up two weeks later. Then it was shut down and production was moved to the current facility.
So what can be done? It starts with guaranteed supply volumes. If you remove them, some industry players are definitely going to want to build an abattoir.