But if it is a cause of food price inflation it is having an impact on a lot of people every day.
The effect of Brexit on food prices will be pretty small.
Food prices have been driven by inflationary monetary policy, demographically driven labour shortages, economic disruptions from the pandemic and various supply chain disruptions, only a small portion of which are related to Brexit.
Most of this would have happened regardless.
The underlying problems of the current malaise are the same fundamental ones that have been afflicting the UK for a very long time. Things might have appeared better in 2016, but that wasn't because the UK was in the EU, it was just because the rot had not yet become quite so obvious.
Rejoining the EU is unlikely to fix any of the UK's fundamental problems, and in some cases may make the solutions even more difficult to implement.
All major parties have manifestos that try to harken back to some imagined halcyon age, be it the national service for the Conservative Party, the EU for the Lib Dems or the magical Georgian Townhouses and Bustling High Streets of Labour.
None of them are truly willing to confront the world as it is today, probably because they believe that large parts of the electorate will not like what they see.