Can you clarify this point for me a bit? Because I'm not confident I follow.
Somebody orders their favourite wine from Rewinery. That wine is, by your own admission, not available at Walmart. But the wine still gets delivered, right? So somebody, somewhere, went to a store and bought that bottle of wine. If they're not getting it from the mom and pop shops, where are they getting it? Surely Rewinery isn't stockpiling bottles of wine from wineries all over the country, just waiting to deliver them.
So there clearly must be some store, somewhere, which is getting a lot of business because couriers from Rewinery keep on buying wine there. Right? It may not be a mom and pop store, but it assuredly has the selection that the deliveree is looking for, otherwise Rewinery wouldn't be offering his wine. So there must exist someplace close by where he can buy his favourite wine, even after Rewinery shuts down.
I think you're confusing online retailers with courier delivery services; you can argue that Amazon drove Borders out of business, but if I'm paying somebody to drive to Barnes and Noble to get some books and bring them to me, it's hard to see how my use of that service will lead to Barnes and Nobel losing business.
Amazon doesn't get their books by having employees drive to Barnes & Noble stores to purchase books at retail prices. Amazon buys from the same distributors/publishers that B&N uses. If B&N goes out of business because everybody buys from Amazon, the distributors/publishers don't care; they still get the business just from a different customer.
Rewinery is the same with respect to mom & pop shops. They both order from the same distributors by the caseload and pay wholesale prices. Those cases of wine get delivered to each of them by the distributor and they, in turn, each maintain their own inventory, whether on luxury handcarved hardwood shelving in a mom and pop's retail store or scattered on concrete floors in a warehouse for delivery to the consumer by truck. The distributors don't care if the mom & pop goes out of business because their other customer, Rewinery, is ordering just as much.
Somebody orders their favourite wine from Rewinery. That wine is, by your own admission, not available at Walmart. But the wine still gets delivered, right? So somebody, somewhere, went to a store and bought that bottle of wine. If they're not getting it from the mom and pop shops, where are they getting it? Surely Rewinery isn't stockpiling bottles of wine from wineries all over the country, just waiting to deliver them.
So there clearly must be some store, somewhere, which is getting a lot of business because couriers from Rewinery keep on buying wine there. Right? It may not be a mom and pop store, but it assuredly has the selection that the deliveree is looking for, otherwise Rewinery wouldn't be offering his wine. So there must exist someplace close by where he can buy his favourite wine, even after Rewinery shuts down.
I think you're confusing online retailers with courier delivery services; you can argue that Amazon drove Borders out of business, but if I'm paying somebody to drive to Barnes and Noble to get some books and bring them to me, it's hard to see how my use of that service will lead to Barnes and Nobel losing business.