I Suspect Trendyol Sold Me Fake Airpods, Now Refusing to Help Me

I bought Airpods headphones from Trendyol and they turned out to be fake. Trendyol said we cannot reach the seller either, take legal action. It is not possible to reach the seller. I trusted the product because I bought it from Trendyol. I contacted Trendyol several times. They say we are just intermediaries and do not interfere with the rest. Then, aren't you instrumental in deceiving people? The reason why we do not buy directly from other sites is that there is Trendyol. In my opinion, such sites should not be able to escape responsibility by saying that we are just intermediaries. Then what is Trendyol's responsibility? Is it just to showcase the product and transfer the money to the company? So, what is the difference between a piece of stone coming out of the box and a fake product coming out? I have been a Trendyol customer for many years. Sometimes, I was buying some products from Trendyol, even if they were more expensive, because there was Trendyol, they wouldn't be able to deceive me, but I was wrong. I would also like to state that I will express this in every environment.