A common carnist reaction to a vegan/plant-based diet is to claim that it is expensive, despite the fact that meat is more expensive (in terms of money and energy consumption) than plants and that as incomes increase, so does eating animals. It is possible that this misconception comes from the highly-processed mock meats sold at stores such as Whole Foods (nicknamed “Whole Paycheck” because of its high costs). Attempting to recreate a meat-saturated diet with veg mock-meats will undoubtedly be more expensive in countries such as the US where meat is heavily subsidized.
A recent US study shows that plant-based diets are (logically) quite common among people with lower incomes. Read the full article here: Veg Diets Popular Among Lower Income Populations, Students in the U.S.