I've been in the Keto community for years, until I realized that the whole community is full of quacks, indeed.
There's no intelligent discussion to be had because the Keto “science” has been proven wrong repeatedly. At this point, I don't think it's worthy of respect, actually. And don't get me wrong, I don't want censorship or anything of the kind. People believing that crap will eventually realize that it hurts them, whereas a small minority will double down.
The problem with the Keto “science”, and its arguments, is that the goal posts are moved, much like anything non-falsifiable, and the studies that are supposedly in their favor are cherry-picked, or misinterpreted. Whereas, they dismiss studies or reviews that prove them wrong, even if high quality (e.g., RCT, pre-registered), based on non-scientific grounds (e.g., not long enough, use of the wrong proxy markers, etc.). What's ironic is that we do have year-long, high-quality studies on nutrition. Diabetes and cardiovascular disease are understood fairly well, but they rarely attack those. They are also full of double standards, crying “conflict of interest” from the “sugar and oil industry”, while not observing the conflict of interest in their backyard, including the conflict of interest from those peddling the nonsense.
And all the nonsense they spew on cholesterol is accompanied by a conspiracy theory involving Ancel Keys and his limited selection of countries to study. They conveniently ignore the facts that a selection had to be made post-world-war, as few countries had data available, and those studies are pretty good, actually, and his findings were replicated. Keto and conspiracy theories go hand in hand.
When I made the comparison with anti-vaxxing or homeopathy, it's quite a literal comparison. They have conferences and are “science”-based too.