As noted elsewhere, the grocery business is one of very low margins. These aren’t the people the admin thinks is gouging people. They are not causing inflation. The monetary policy, price of money and the price of energy are driving inflation.
I guess the operations are kind of freestanding.
https://www.macrotrends.net/stocks/charts/WMT/walmart/net-pr...
https://www.macrotrends.net/stocks/charts/KR/kroger/profit-m...
https://www.macrotrends.net/stocks/charts/COST/costco/profit...
https://www.macrotrends.net/stocks/charts/ACI/albertsons/pro...
https://www.aholddelhaize.com/en/investors/quarterly-results...
The answer is that retail grocery business is highly competitive, and that price increases at retail grocery is because their costs are increasing (food vendors, labor, land, etc).
Also, ISPs earn profit margins that are multiples more than grocery retail businesses:
https://www.macrotrends.net/stocks/charts/CHTR/charter-commu...
https://www.macrotrends.net/stocks/charts/CMCSA/comcast/prof...
https://www.macrotrends.net/stocks/charts/T/at-t/profit-marg...
https://www.macrotrends.net/stocks/charts/VZ/verizon/profit-...
https://www.macrotrends.net/stocks/charts/TMUS/t-mobile-us/p...
ATT and Lumen have terrible management wasting money on bad investments, so their profit margins are variable and not so hot. But competent businesses like Verizon/Comcast/Charter can easily milk their wired customers who only have 1 option for ISP.
(the person who invests in groceries, and turns over their inventory 15 times per year, faces a very different business from the person who invests in speculative software, and sees a handful of exits per career; the person running an ISP is likely somewhere in between those extremes)
If there were tons of mom-and-pops, prices would be even higher due to lack of scale economics. There are a ton of mom-and-pops where I live and they are extremely pricey -- I never shop at them.