So your thesis is that it should be fine for only the rich to get to eat meat, and poor people can just eat maggotburgers and soy?
Can you see why someone might see that as an elitist, late-stage-capitalist solution to the problem? Especially when we know factory farms work to feed massive numbers - shouldn't the focus be to make it more environmentally friendly, rather than restricting it to those who can pay?
God, can you imagine working the farm all day and then going home to eat crickets because you can't even afford the hamburger you're raising?