This resulted in an article in the Guardian, by writer Rhiannon Lucy Goslett debunking his tweet , which is well worth reading.
https://www.theguardian.com/commentisfree/2017/oct/26/no-one-use-libraries-any-more-rubbish-sanctuaries--enrich-communities
Her article contains two (to me) significant quotes: “These sanctuaries enrich our lives and communities in so many ways. Without their magical world, I would never have become a writer.”
The second is well worth wider dissemination:
“Libraries may be needed more by poor people but many comfortably off people use them too. Regardless of class background, libraries plug us into our communities, reminding us that there is life beyond our living rooms, that there’s more to our daily existences than work and coming home, and the same again tomorrow. We are not all atomised in front of our glowing screens. Libraries don’t just mean us, they mean other people too. No wonder we fiercely protective of them. They are priceless. Maybe that’s why they are so busy!”