What was the seller's feedback like? Did they have a history of selling fake/counterfeit items, or cheap knock offs? Where were they located? Where did the item originate? Was the price indicative of a counterfeit product? Were any of these very, very basic red flags present?

At the end of the day if you actually did buy a fake, YOU allowed you to buy it. It was entirely your decision - a decision which you weren't forced into.

Take some responsibility for your own actions. You don't have to buy something just because it's for sale, and it's nobody else's fault if you end up making a poor decision.

Now, if you did in fact receive a counterfeit product, you don't get to onsell it... lest you breach eBay policy and risk them placing sanctions on your account.

Just remember that if you have any doubts at all regarding authenticity, then it should be considered counterfeit.

Nobody here tagged anything, people here are other buyers and sellers, posting here is not communicating with eBay

You as the buyer are responsible for knowing if you purchased a fake in the first place, especially if you then list it yourself

Yes, eBay does allow fakes of all kinds to be listed and sold and usually protects the selling the fake, so you buying from a seller on eBay does not mean anything