Then what's the concern? People who want to pay for the convenience of amazon will pay for it, people who value the dollar more, will shop locally in this case. Outlawing advances in convenience seems regressive, no?
my experience when I lived in Paris that this is highly neighborhood dependent. If amazon was to decimate the faux authentic stores of Montorgueuil or Montmartre, I don't think it'd necessarily be a bad thing.