Do you know how much Jersey Barriers weigh? They weigh about 3600 pounds, so total weight is around 40,000 pounds, a full load for a semi. Thunderft used an unrealistically low figure, as is usual for his bad faith debunking videos.

There’s nothing particularly difficult about 1MW charging, there are already standards for this. (Tesla is part of the standards body, and they’ll either use the standard themselves or improve and adapt it to their purposes like they did with Chademo…) Tesla Semi prototypes in the past have used multiple 250kW connections. This is not some big gotcha, and honestly thinking there’s something impossible about 1MW just shows ignorance of the state of vehicle electrification. Your concern about grid connection literally is addressed by pointing out existing Tesla supercharging stations provide far greater aggregate power already.