It's a short and well written book, I'd recommend it if you're interested. One point that Borjas makes repeatedly is that he believes there is a suppression of reporting on the negative impacts of immigration liberalization. He also notes how on several occasions colleagues expressed surprise and dismay that he chose to publish findings that "went against the narrative", out of fear that they could embholden enemies of liberalized migration. Therefore, I would be cautious of drawing much from consensus or deviation therefrom.