Booksellers do deserve protection
I'm sure some rabid free marketeers will be along to vote down in their droves, but I do think book sellers are a class of shop that we should be doing more to protect. A good local store is an great resource - I'm lucky enough to have two nearby that do things like readings with authors, events for children, promote books by local authors, or about the area, and also have knowledgeable staff who can help with many things. Frankly, they're good enough that I feel guilty when I buy e-books.
There are still some things that I prefer to buy in hardback when they first come out, and for that I go to the local bookshop; sometimes it costs me more. But I think it's worth it.
You might not think this, if all you ever buy is the latest blockbuster novel or recipe book, but for many people, books are a lifeline, and an important resource; and so too is the ability to walk into a bookshop, pick something up, and pay cash for it. Even if they don't have it in stock, I can do that in my local store, and while they'll ask for a name when they order in, they don't ask me to prove it.
Why is that important? It's important because when the local booksellers are all gone, and the only alternative to online suppliers like Amazon is the supermarket, you're not going to find anything much beyond the blockbusters in places like that.
You may lead a blameless life, confident that you have nothing to fear. But there are people who may not have mainstream political views, or sexual tastes, who find being able to access, for instance, gay literature, an important aspect of their lives.
Drive the small bookshops out of existence, and there will be many people, I suspect, who will not be at all happy that the only way to get hold of, for example, The Carnivorous Lamb, is to give your name and address to a large corporation and trust they'll never hand over records as part of the next moral panic.