Why? Do you think global warming considerations are going to be that mainstream? Tobacco has a lot of things going against it - it's bad for you in any amount and it gives off an unpleasant odor that stains fabric and walls. Not much of this applies to meat.
This is overblown and not nearly as well supported by science as you think. Just like how people said for decades that saturated fat is bad for you. It's provably not.
Try leaving some beef around the living room or smearing it across the wall. Smells even worse than cigarettes!
I think the parent comment had a point about morals, not the practical aspects. It is already starting to happen: what will my friends think of my leather jacket, can’t propose a barbecue for a company event, etc etc.
