All in all, in moderation, meat is not unhealthy and you don't need to become vegetarian overnight to have a real impact on your health and the planet.
That's a good question, interesting question, I was actually a vegetarian for over 7 years, and I found the good things were that I felt I had more energy.
Veganism is on the rise, but Getting 100% of Americans to go plant based is unrealistic, so let's be optimistic and say we got 10% of the United States to stop eating meat.