Indeed, though it also shows the reverse - we know you can hold a building together using pretty much nothing but electromagnetism
I suppose it would be technically possible, but unrealistically costly in terms of energy to use electromagnets, and I would be amazed if it could hold a structure together and still be lighter than steel. My WAG is that you can build a steel structure a lot higher than one using electromagnets. And it would be a couple of orders of magnitude cheaper.