Respectfully, I really disagree with this line of thought:
* Having digital facsimiles of your collection makes it more accessible and more available
* More people knowing about your collection means more foot traffic
* Some things about a collection can't be discovered from a digitized copy; having a record of the digitized copy encourages researchers to come in and see the real deal
* Maybe scholarship doesn't have to happen IRL? See Colson Whitehead's The Underground Railroad: a fantastic novel that was researched primarily online [0]
0. https://newsandfeatures.uncg.edu/grant-expand-digital-librar...
There's huge value in electronic submission and electronic availability of resources which could really make the LoC useful to the modern everyday American. The LoC will surely always get physical copies of content of significant note, but plenty of trivial media entries with little historical value, a.k.a. "how to use this recent JavaScript framework" are likely better handled and retained digitally.