As I have commented before, many people have allergies to swathes of foods on whixh vegan's rely.
My DDiL has an autoimmune disease and since it was diagnosed has become allergic to soya (seriously enough to carry an epipen, nuts and fresh fruit. With out meat, fish and dairy products, her diet would be both unbalanced and unhealthy.
janejudge every thing in our life that almost everyone takes for granted like electricity, gas and water networks, indoor loos, central heating, washing machines, fridges, decent beds, new clothing, good quality undoctored food started first as something only the well off could afford.
But those who bought all these expensive products, by their purchase made it possible to produce more of them, produce them more cheaply and make the luxury of the well off part of the life of almost every family in the country.
I hope by consistently buying good quality food from local producers, whether meat that has been grazed only on grass, without being fed corn or soya, bread from a local bakery that uses local organic flour, belonging to the Soil Association and supporting charities like Practical Action that develop environmental solutions to the problems affecting farmers in developing countries, i am supporting businesses that are part of our response to climate change and environmental protection when they are small, so that over time as these businesses grow they can produce more and more cheaply so that more and more people can benefit from the sustainablilty of their work.
For many vegans their diet is reliant on UPFs (ultra processed foods), like all those meat and dairy substitutes made from soya. These should only occur in healthy diets in small quantities.
They are also over reliant on imported food stuffs