Its not actually sustainable for the whole planet. Meat farming, particularly beef, is terrible for the environment.
Not to mention the already dubious state of meat production in the US, the country with the highest consumption of meat. I don't think these issues would be solved with everyone on an all meat diet. Obviously they'd worsen.
I'm glad its working for you, but consider the larger implications of 7 billion people going all meat. Or even just the entirety of the US.
Bus gloves to go with my bus pants