I am not saying that "special beef" is the only option; I am pointing out that it IS possible to eat animals and do less harm than someone eating plants IF your concern is harm (pain, suffering, death). I suspect it is easier to convince people to eat a diet with a small amount of meat than one with no meat.
If you have an animal product substitute that is convincing enough to replace the real thing and is priced competitively -- yes -- I think it's possible to convince most "omnivores" to give up meat completely. The trifecta of arguments against meat (health, environment, animal welfare) are pretty strong, the vegan movement is rapidly growing as people learn these arguments, and even if someone doesn't care about one of the arguments (animals, for example)... there is a good chance one of the others (health, environment, for example) will convince them of the importance of this cause.
The remaining omnivores who can't be convinced by any of these arguments could be convinced by social ostracism, shaming, and legal penalties -- after most of the "omnivores" have converted to our side. Such laws might seem unlikely at the moment, but once enough omnivores are on our side, we could have the numbers necessary to enact government policies that would push the most vegan-hating groups on the other side into adopting a vegan lifestyle whether they like it or not.
Keep in mind very few people thought cannabis would be legalized in the United States 20 years ago... and yet here we are. Cannabis is legal at the state level in unexpected places like Michigan. Change can be painfully slow, but it appears more and more are learning about the benefits of veganism and are trying to reduce animal product consumption... even if they are only starting with "Meatless Mondays" or vegetarianism.
(Keep in mind, most of us vegans started out our journey to veganism that way too. Very few vegans decided to become entirely vegan overnight. In most cases, it was a gradual process).
OK, can you provide a cogent explanation as to why the experience of a cow is somehow of greater meaning/quality/ethical duty than the experience of a locust? You might say that a cow is smarter, but cognitive prowess is not what it means to experience the world or to be the subject of a life.
I agree that intelligence is not the metric by which we should judge whether we should be concerned with the suffering of an individual creature. If that were the case, it might be ethical to treat certain mentally disabled humans in a cruel manner (obviously this is unacceptable).
However, given that cows and pigs are much more closely related with humans and have a much more sophisticated central nervous system (something we know to be closely related to our sensation of pain), we have every reason to think prima facie they experience pain just like we do.
With insects, the arguments that they experience pain like humans do are weaker and are debated by researchers in that field. Your own link says so:
Modulation of nociception allows animals to optimize chances of survival by adapting their behaviour in different contexts. In mammals, this is executed by neurons from the brain and is referred to as the descending control of nociception. Whether insects ...
royalsocietypublishing.org
Thus, it makes sense to focus our efforts on reducing the suffering of farm animals until insect advocates have more evidence to support their position (or until farm animal suffering has been adequately addressed so we can focus on insects without dectracting from our efforts to reduce the presumably greater suffering of farm animals).
If you want to argue we should err on the side of caution and try to be kind to insects where reasonably possible, I would agree only insofar as this does not detract from our efforts by muddying the waters and arguing meat isn't really all that bad in some cases, and that the average person doesn't really have a good reason to switch to a vegan diet.
Are faux meats really likely to take off? [...]
For the record, my fridge is full of Beyond Meat patties, Impossible Burger burgers, plant based chicken and so on. But I find that the vast majority of people are not doing the same. Will they ever? Maybe, if these companies can survive long enough to win out. I am sceptical, though I like to imagine that cell-based alternatives may fare better.
Society is changing rapidly. The numbers of vegans, vegetarians, etc have increased substantially, and probably will continue to increase as public awareness of the issue increases and companies making animal product substitutes get more customers and scale up their operations. This could happen much faster with changes in government policy (meat taxes, subsidies for Beyond Meat or Impossible Burgers, changes in education curricula to educate the public about the benefits of veganism for health, environment, etc), but it might unfortunately take a long time.
Just look at changes in New York City with all the vegan programs being adopted there like Meatless Mondays, Vegan Thursdays, etc, all thanks to the growing influence of the vegan movement and their great new mayor. He wrote a book btw I look forward to reading soon: