Jobbly, I really, really don't want to seem argumentative. I suspect we are on the same side, to a fair degree. It's 100% your choice to decide what you eat, and I totally agree with you that many (most?) modern foods and ways of eating are extremely unhealthy. However, I would just like to make a couple of replies:
Unfortunately, only a few studies examined the independent effect of meat consumption on the risk of colorectal cancer so the associations found here could be confounded by other dietary, lifestyle or genetic factors."
The answer to that is surely not to ignore or dismiss the meta-survey, which did strongly suggest a possible link, but to call for more research to prove or disprove the possibility it revealed - and perhaps to exercise the precautionary principle in the mean time.
Re nutritional research having come a long way since the 50s - it's more like we swerved into a separate set of fundamental assumptions based on the Ancel Keys theory of saturated fat causing heart disease.
The fact that several 20th cent ideas about fat consumption may be wrong does not alter the fact that our scientific understanding of (a) nutrition and (b) various features of the Inuit/other hunter/pre-industrial lifestyles has improved since the 1950s. Nor does it alter the fact that many pre-industrial peoples did not live to the age at which cancer and heart disease most often develop in modern western populations. So we don't know whether or not they might have developed them.
If you have time, you might like to have a look at this article:discovermagazine.com/2004/oct/inuit-paradox. It's really sympathetic to the idea that the modern diet is very unhealthy. It appreciates that, in different places over the centuries, dramatically different ways of eating have evolved to obtain nutrients from all kinds of foods - whatever was available. BUT it also points out that it's almost impossible nowadays to eat a genuine Inuit diet - which involves much more than simple meat and fish. To get all the micronutrients traditionally consumed by the Inuit from fat/meat/fish alone, we'd have to eat things like raw brains, raw whale skins and blubber, fresh blood and the fresh contents of caribou stomachs (= part-digested plants) etc etc. The Inuit also ate berries, roots, shoots and seaweeds and fermented foods. Perhaps most important of all, the Inuit diet was protein-limited and based around fats and oils from wild marine creatures; these are not readily available to most people.
It does however say that eating wild foods - especially oily marine foods - is a good thing to do today.
Steffanson was not a doctor or a biological scientist. He was an explorer and ethnographer working almost 100 years ago. I wouldn't trust my health to him.