That is hardly a random doctor's blog. It is an interview with Dr. Don Layman, one of the top experts on protein metabolism, and includes links to multiple relevant research papers. You should educate yourself before spreading misinformation.
Chronometer is junk. It is not a valid source of scientific information.
Cronometer isn't junk. They rely on on USDA recs and have their own experts. You could stand to educate yourself a little as well before spreading misinfo.
The doctor's theories to which you linked are not consensus, and I'm going to stick with what is consensus so far. Consensus is 0.8grams of protein per kilogram of body weight.[0][1]