I was able to witness time where people were PLing everything that hadn't been touched from coffee makers to toasters because they were considered more advanced than silicone spatulas or whatever lol.

People were printing easy money until their product categories got flooded from other sellers or Chinese sellers going directly into FBA.

Then I learned just how much Amazon was ramping up their own PL attempts. It started with obvious categories that have generics similar to what you'd see in your Walmart, Target, Kroger, etc.

Then I learned just how much info Amazon has and just how fast they could expand their own private lines into practically every category, only cutting ties with lines that had poor manufacturing or just didn't plainly work out for whatever reason (that they likely know).

That being said I still think there is a lot of opportunity, as you have just experienced. I also respect how you recognize just how valuable this goose egg of yours is, and what you may need to along with how far you need to be willing to protect it.

We've seen how much Amazon wants China to go direct here, with all of the conferences and support teams implemented to get them to understand the basics of the sales channel. FBA is a more 'guaranteed', higher margin business for Amazon to utilize and make it happen.

That being said I'm curious how many more agencies will pop up to help tailor make an approach for Chinese manufacturers to sell to US customers. There'd be a lot of nuances to it but it makes me curious if Chinese businesses would spend a little to have a US marketing team optimize their approach.