LOL, I was merely countering the Daily Heil nonsense, esp. as for the UK in particular, Brexit, which the Daily Heil desperately wanted has hugely impacted supply and prices, i.e. bare shelves on the UK mainland (out of the EU) vs no shortages in Northern Ireland (part of the UK but still in the EU market due to the Brexit deal), labor shortages (EU citizens left), truck driver shortages (EU citizens left), harvests rotting (EU citizens ...), UK imports most of its food (borders now so delays as out of the EU) etc.
I don't disagree with the general premise of the market rectifying, but realistically there's no quick entry to many (or even most) of these markets, so blind belief that the market will sort it out is many times unrealistic, hence we have anti-trust laws, as you point out. Also, anti-trust investigations and suits take years to run their course, as you know, so the ability of anyone to rectify these things short term is minimal, barring major intervention in the market by governments.
From my under-educated perch, its seems that costs have risen, so have prices, but companies quickly figured out that they could tack on extra PLUS they no longer had to run discount promotions etc., basically they have increased margins (via prices) while complaining about the pandemic & supply chain issues etc. raising costs, as cover. Fine for them, but it impacts everyone's pocket, those who can least afford it most but the rest of us too.
I don't think it's incorrect to call it profiteering - the word just rubs some people up the wrong way, i.e. I wasn't suggesting it was not the market at work or that anything illegal was going on. Its just companies seeing an opportunity to screw extra out of their customers in the knowledge that they have nowhere else to go in the main.