Peter Boghossian's brain melts trying to argue against open borders

I'm an hour in and I love the dynamic of watching "centrists" or "moderates" try to argue with an economist about immigration. Boghossian keeps intimating that he has objections and disagrees but is unable to form any question that isn't ridiculously vague or hand wavy.

Does anyone know of a video / debate / interview with an actual good representation of the anti-immigrant position? I would say Bryan Caplan for Bridges to give tiny some use and motivation for his immigration research but I'd guess they mostly agree on everything since pro immigration is such a consensus economic view.