Modern architecture is individualism run amok. Buildings are more testaments to architects’ egos than organic improvements to the surrounding environment, or sources of aesthetic pleasure to passers by.
I don't see much individualism in modern architecture, though. All these modern buildings tend to look the same. Ugly and depressing.
"A building has integrity, just as a man and just as seldom! It must be true to its own idea, have its own form, and serve its own purpose!"
Would that produce an architectural style run amok? I don't think so. But I believe the view point described there would be described as individualism.
Responding to modern needs with modern solutions might be easier without having to match the traditional style.
It’s possible that _you_ don’t like the resulting aesthetic but that’s not some broader statement about modern architecture, it’s literally your personal preference.
(Not all of it is successful! And like, it's hard to say Calatrava is about that. But we hear more about the failures than the successes in modern architecture, and conversely less about the failures of classical architecture, b/c survivorship bias.)