This isn't a great argument. There is so much open undeveloped space in the US that could be used to house people. This interchange isn't taking space away from anyone.
What do you propose they do with that space? Adding literally any way to access it necessarily interferes with the roads around it and makes the entire project pointless.
Even ignoring that obvious problem, you can't use it for housing since there's nothing there and it's surrounded by high-speed traffic. Can't build shops or other amenities there since nobody stops and it's surrounded by high-speed traffic. You definitely can't put livestock there.
That wasn't the argument I was responding to. The initial argument was that the interchange was taking away space that could be used to house people. Simply replacing the interchange with housing would cause even larger problems than developing the empty land around it.
I'd say you're technically correct in saying that we can do everything, whereas the other point is that since other species are also affected by our decisions we shouldn't