But that's not the case. They are being used, just less so due to technology.
Well, if they are not being used enough, they are not viable and will close.
And...? Does tearing down buildings mean there's no virtual libraries? Does it mean people aren't using libraries that you can't literally demolish? So since you won't answer the question of would you destroy libraries, would you destroy the information that libraries hold now that it's pretty much all digitally stored somewhere?