I really doubt it. The agricultural lobby is super strong. Meat would have to become either super expensive or super subsidised to be anywhere close to "green". You'd have to fix all the animal feed production first, too. People would not accept paying 3 times more for meat either.
Boycott? Man people are shit. Number of people that I know who cannot go without meat for a single meal is way too high. I study in a masters course about sustainability, out of 52, 41 eat beef (arguable the worst kind of meat for environment) more than 3 times a week. Some of those 41 are hardcore environmental activist and go to protests and demonstrations. Hypocrisy is real. They're willing to give up car, but not meat.
It boggles my mind.
