"The block on eBay comes from eBay. Credit card companies HAVE temporarily blocked sales from companies in Russia, but not sales from people who sell things like used books or tablecloths in order to make ends meet. The across-the-board block on eBay for purchases from coming from sellers in Russia comes from eBay. Also, companies like Fedex won't ship TO Russia right now, but are shipping FROM residential addresses in Russia".
The international banking community has shut down the transfer of funds to Russian banks, Visa, MC and Amex, and PayPal, and I suspect most of the other online pay services, are no longer processing transactions to or from Russia as of March 9th. Russia's Spberbank has had to turn to China to find an international credit card system UnionPay. Which of the international online retail sites that you know of accepts that card? Maybe alibaba will.
As others have pointed out cargo and passenger flights into and out of Russia have been shut down by western countries including Canada. Ground transportation into and out of Russia is being heavily restricted by the countries Russia's eastern border. So as a matter of business only, how can individual Russians sell or buy anything when they cannot get paid or pay, nor can they send or receive goods?
It does not matter which site buyers or sellers want to use, even if one has not formally stated they have stopped transactions between the U.S. and Russia, those transaction cannot be processed nor goods sent or received.
"I totally understand and share the outrage that people have for Putin and his regime, but am seeing a lot of this directed at any individual who has any kind of Russian connection at all and this is wrong. Even Russian Americans who have lived in the US for years or their entire lives are experiencing hate mail or boycotts of their businesses and this nonsense comes from people on both sides of the political spectrum".
I do not know where you are getting that information from, but I have not heard of that happening at all. In my area we have fair sized Ukrainian and Russian communities, and there has been no conflict between them nor from other nationalities directed towards Russian Americans. As a matter of fact during one demonstration here supporting the Ukraine, there were people carrying Russian Polish, and Belarus flags in support of the Ukraine without any sign of conflict. In Brighton Beach, NY which is the largest enclave of Russian speaking peoples in the U.S. including Ukrainians. The people have bonded together against the war. The shops and restaurants in "Little Odessa" as it is called, are open and no one seems to be in fear of any type of retaliation from the broader community.
I do feel for the Russian people, whose leader has pushed them into an unwanted war. They were in the streets protesting against it a week or so ago, before Putin shut down the news in and out of the country. Last report I heard was that troops were possibly firing on the protestors.
"THERE IS NO SUCH THING AS FOOLPROOF, BECAUSE FOOLS ARE SO DARNED INGENIOUS!" (unknown)