This is a strawman argument, their real one is: "These megalithic structures would be tremendously difficult for anyone to build even today with all of our modern technology, and yet they did it hundreds of times before even inventing the wheel, in several places across the world."
Yeah, they probably didn't have to file for environmental review and eminent domain.
It is a weird argument because we totally could build a Great Pyramid replica. Ships and trains hauling stone and tower cranes plopping them into place. We are really good at moving things and lifting them. It would probably be the quarries that be the bottleneck.
If wanted it in concrete, would be faster. Or could do it in steel or steel/concrete with some interior space (Luxor in Las Vegas is size of smaller pyramid).