That's true. But having an Aldi at the end of your streets where you buy a chilled and prepared chicken can hardly put you in the same category as indigenous tribes.
You can't be serious?
No, it's true, buying an oven-ready chicken isn't the same as catching a wild bird in a snare or with a bow and arrow, plucking it, gutting it and then roasting it over a smoking fire, but the end of result of meat eating is identical.
If Our bodies are not designed to eat meat please explain why every single human culture that still lives at a stone age level eats meat and eggs. If we're 'not designed' for meat, why aren't these cultures - which live in a vast range of environments - shunning it? If we're 'not designed to eat meat', why all those scenes in Stone Age art of people hunting? If we're 'not designed to eat meat', why all those bones at Stone Age sites which show clear marks of butchery or have been cracked open to extract the marrow. Why the evidence that at least one culture arrived on some islands and promptly wiped out the megafauna (the Moa was exterminated in NZ)?
There's even a theory that one reason that Homo sapiens was so successful was that we ended up hunting with dogs, which made us much more efficient.
The World Health Organisation have said that processed meat (including bacon and sausages) is a carcinogen. Like, literally causes cancer.
It's a low increase in risk, and you have to eat quite a lot of it. See here
They also hunt, kill and prepare what they eat. We don't
A lot of the meat in this house comes from deer that DH shoots and that we butcher at home. Last winter I took home pheasant other people had shot (I didn't shoot myself, but I was part of the process) and breasted them out myself. Not everyone is completely disconnected from the lives and deaths and carcasses of the meat they eat.
So no not all farm practices are good in fact if these industrial sized farms are feeding the majority of the UK and not the nice small farms which we pass when driving through the countryside (which are clearly the minority)
Most sheep and most cattle in the UK are raised in pasture and (in some cases) overwintered indoors on silage.
Just because some farms treat their animals poorly doesn't mean all farms do: it would be like closing all care homes because some are terrible.