It isn't VAT, but rather the $800 Tariff exemption that mail order individuals get. And Trump's trade war makes it worse. Plus the sales taxes that get ignored for many locations (not an issue in Oregon).
If we're seeing Nashbar and Niagara both suffering in this economic climate, then the issue goes much deeper than the LBS.
I've decided to no longer buy Shimano chains. I have to think about other parts. Cassettes?
Fortunately my next major purchase will be tires not covered by Shimano's boycott.
I've been wanting to start a small business, and it has become more and more obvious that Shimano is not a company that I wish to deal with.