It’s not continually shrinking though. Look at the graphs.A continual shrinking of the UKs farming base? from the national herds of pigs, cattle, sheep getting smaller as people pack up? to farms ending being working farms, with that the support industries that support agriculture will also continue to shrink? All very well saying prices are rising but out rising your out put is the inputs to produce?
At least not over the past 10-15 years since the traumas of BSE, F&M etc. Yes farms may pack up but others continue to grow. More milk being produced more efficiently from fewer cows being an obvious example.