Part of me wonders if eBay is doing some price fixing.

They suggest prices and now you they offer AI generated descriptions for your products, they handle the shipping fees and process all of the money from buyer to seller and take their cut in the process.

But if they are suggesting prices and causing the price of everything to increase so that they can increase their cut of the proceeds then it seems like that might be if not illegal then at least concerning and possibly legally actionable.