Take a look at how the body uses protein. Excess protein ends up producing uric acid and ammonia. Sure, a healthy body can usually get rid of it within reason, but it's still toxic. Fat is the only macronutrient that doesn't produce toxic byproducts in high quantity. Muscle is only 16.4% protein. You don't need stupid amounts of protein to put on weight. You do need excess calories. Trust me on this, when meat is no longer appealing, quit eating it.
I don't see how I'm eating "stupid" amounts of protein, I'm eating 1g per lb of body weight. Even if I knocked it back to 1g per lb of lean mass I'd still be eating >230g of protein daily. Yes I'm trying to lean out, but no, I'm not trying to lose weight. Yes, I could get by on as little as 100g of protein (I've done it and all it does is make me small, not lean, just small), and no, I wouldn't see the same strength gains.
I'll quit eating it when it becomes unappealing, it hasn't. Filling yes, but not unappealing.