I would put very strong money down that by the time most people reading these comments are in an old folks home with their grandchildren, the vast majority of the population will consider consumption of all meat unethical.
I don't think it will be illegal yet (just extremely regulated, and expensive - not the least bit because the carbon footprint of meat production will be fully factored into the price).
But to most people under 30 they will consider it as ridiculous as smoking.
And they'll ask us uncomfortable questions we won't have good answers for. Didn't you know about the health risks at the amounts you were consuming? Didn't you know about the carbon footprint? Most importantly, didn't you have ample evidence of consciousness, personality, and sentience in every way that is reasonable to us? We didn't eat dogs but considered pigs and cows different? Why?
And we won't have answers.
A few more decades and people will look back, note the high numbers of vegetarians and vegans in the public sphere, and ask the people of that present to stop venerating historical figures from our time because of pictures of them eating steaks. They'll say "even by the moral standards of the time, they were criticized. The information was all out there."
I don't say any of the above as a value judgement that I think it's good or bad. Just that I think it's inevitable.