Sunlight alone is useless in deserts or areas with unsuitable land. Kingdom Plantae's needs vary extraordinarily depending on the specific plant that is being grown.
Soy is in these days and there are more things to its production than just seed in the dirt. You start reading up on what soy does, and anyone still clinging to some notion it in particular would be universally better than some meat needs to turn in their rationality card.
Despite the well-crafted, expensive PR campaign, soy is bad for you, and you need to know the havoc it has wrought on our health and the environment.
www.smallfootprintfamily.com
These rudimentary and lobbyist fueled analyses are sorely deficient as causing human harm also causes financial and environmental damage, as gas for transport, drug development, etc all add to the consumption of fossil fuels.
The Amazon rainforest is ten times more valuable than most common American forests, and soy and sugar, not cattle are two of the exponents brining that particular forest down.