Your example describes a fantasy.
The vast majority of people do not travel anywhere close to 40km to buy groceries. Even in a car-centric country like America, the average driver travels just 4km.
If someone has to travel 40km or more to get to a grocery store, it's because they live rural. People who travel that far for groceries do not buy 200g of wagyu at a time. They typically only go once or a few times per month and they stock up.
The population of people who live rural is very small. People who live rural are also quite poor.
The carbon emissions, environmental impact, and fuel consumption of this population of people is so unbelievably small, it's irrelevant.
But, you are targeting this small population of poor people. No wonder you get so much pushback, or "extremism". I guess poor people defending their way of life is extreme.