Most likely, this will be so, because in the conditions of 10-15 billion mouths, no one will ask if they want a redneck to eat bean soylent or a steak. The cattle will choose between Soylent and starvation.
Another scenario is also possible: the redneck turns on the brains, ceases to be cattle and refuses to conspicuously consume. Then comes the realization that animal husbandry is destroying the planet, and no one will remember the maxims like "a man should eat meat", "if nothing is dead in a plate, not food" and so on.
Perhaps people will look not only at eating meat, but also at eating vegetables as barbarism and the destruction of priceless living beings. It all depends on whether they learn to synthesize inexpensive and healthy artificial food or not. Or, in a darker version, will a regime be established where people are so brainwashed that they will happily eat unhealthy synthesized food, profitable in production, and not ask questions. Various experiments with the diet are possible in general in two cases . When there is plenty of everything and a person can painlessly give up part of the products, replacing them with others. And not really ditch your body. Veganism, vegetarianism, diets, raw food diets and a bunch of other trends. Everything from the fact that we can afford it. But there is a second option. They don't really care about a person; they want to save as much as possible on him, as on a work unit, without causing fair indignation. This is, for example, fasting for peasants in previous centuries or vegetarianism in India and similar countries. A simple ideological way to explain to a person that he will eat little and potatoes, not because the superiors are too hungry, but because it is so correct and ethical, and it is also ordered from above. So all this is from economics and politics. If at some point it becomes easier and more profitable to produce something protein than to raise livestock - then yes, the view of meat will change very quickly and massively.
I do not exclude) there must be a naive belief in a miracle.
in fact, humanity is progressing unevenly, if we are "civilized" and move on to this ever, somewhere someone has everything there will certainly be a need for hunting. On the other hand, hunting is hunting. caught-killed-ate, no more, no less. These go and call themselves predators, but not us.
In general, I want to believe.
It seems to me that in hundreds of years, mankind will begin to grow muscle tissue without the need to maintain livestock (which requires resources, takes up space and produces methane). Moreover, it will be healthy and safe muscle tissue. And not only her, in the future, I would like to believe, we will only see an increase in the variety of products, and not their exclusion.
Healthy eating is, first of all, diversity. And to think that eating meat is slavery is some kind of nonsense, God forgive me.
Most likely, in hundreds of years, people will eat completely synthesized food. There is no point in raising a cow if you only need nutrients from it. It is much more efficient to grow the nutrients themselves.
Everyone will become vegetarians, because raising and keeping animals for food will become unprofitable.
I do not mean that people will eat tasteless protein stew, like in the movie "The Matrix". On the contrary. The technology of growing artificial meat from stem cells has already been successfully tested. So far, it is very expensive and is inferior in its culinary qualities to real meat, but think about the fact that the technology that allows you to grow artificial biological tissues has been around for a few years. And what will technology achieve in 100-200 years? I am sure that there will be no difficulty in growing an artificial piece of meat that will be in no way inferior to the real one. And it will be easier and more profitable than keeping a cow.
How will people of the future feel about the current diet? Most likely, the thought of having to buy a bloody piece and fry it in a skillet will disgust them. But I hope that the people of the future will be well educated and will understand that in our current situation such a "barbaric" approach is justified. That is, people will feel a kind of empathy for our current "hardships".
"On your resume you indicated that you are a vegan, is that so?
-Yes, that's right, I'm a vegan.
-But we didn't ask you to send your resume."
Anything is possible, but extremely unlikely.