70g is definitely not "absurdly high". The British Nutrition Foundation recommends 0.75g per kg bodyweight, though it's unclear if that's lean or not (https://www.nutrition.org.uk/nutritionscience/nutrients-food...).

> The amount you're talking about is the one commonly used by body builders who are using steroids

Sorry what? Those of us who lift and are trying to grow muscle take more protein, but don't just lump us in with steroid users. https://examine.com/nutrition/how-much-protein-do-you-need/ is an evidence based review on the subject.