The irony is everyone already seems obsessed with protein these days, which I guess plays nicely with meat lovers / producers. The last thing Americans need is more encouragement on the protein front IMO. Suddenly everyone thinks they're a body builder when it comes to food.
The few friends I've known were attempting ketogenic diets over the years kept focusing on the protein side when the actual diet is supposed to be dominated by fat. They've all experienced kidney problems of one sort or another, surprise surprise!
I mean protein does fill you up faster and better with fewer calories which is good for weight loss or management.