>>13825620It's because you can build taller and bigger buildings with glass and steel than with anything else. You can also have longer beam spans and thus, bigger and wider spaces inside those buildings without having a forest of columns inside them with glass and steel. The reason it's all glass now is because it's a more inexpensive, lighter, and relatively thinner exterior material compared to stone or concrete.
It's all really just cost and structural efficiency first for the client. As for why they look soulless, you can blame postmodernism and hack designers trying to copy the latest sleekest design trends (and failing at them). Architecture is just as much of an art as any other art form, and postmodernism is a thing with it too (you can argue that it ended in the 90s but that's for another discussion).
I like that /pol/ is the only board capable of having architecture threads but at the same time it's pretty fucking dumb to see how much you fuckers don't know anything about it at all and just resort to 'muh communism and joos'.
