If the merchandise is counterfeit, then you were defrauded by the organization that sold to you, and you can file a third party lawsuit against that organzation for the damages caused by the suit against you. Even if you are not actually sued, you can sue the organization for its misrepresentation of the product's resaleability.

Of course, if you knew that the product was counterfeit, then you're pretty much on your own. However, you could offer to testify against the distributor in exchange for a total or partial release from liability.

Hope this helps.

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Large companies routinely purchase from eBay in order to prevent piracy. From the manufacturer's perspective, you're a pirate until proven otherwise. I don't doubt your veracity, but as it is now, you are likely liable for trademark, trade dress and copyright infringement, as well as unfair/deceptive trade practice. So, if you cannot sue the distributor, then you will be left holding the bag.

One of the very big downsides to dealing with Chinese businesses is that they are immune from U.S. legal action. The only controls that can be exerted is by businesses that have products manufactured in China by the threat of cancelling contracts.

The USA should never have started trading with China, in my view. But, the cat is out of the bag, and there's no going back.