Also, disposing of books when there are not actually space limitations, in order to create the supposed library of the future that has few books, is so new a phenomenon that it shouldn’t yet be called routine. Objecting to this trend is still very much appropriate.
20 years ago when I was in university, this trend was already picking up steam.
First they removed the historical newspaper microfilms (replaced with an online archive which could be searched)
Then the academic journals went online, allowing desk-bound academics to access them online.
Then the paper journals they had on the shelves got older and older, and the library became less and less a place of research, more and more a collection of textbooks for undergraduates and a place for quiet study.
And once the library decided to focus on being a study space, whiteboards and areas for study groups and laptop users became the order of the day. Smart whiteboards and projectors too, this being 20 years ago.