Anything you sell on Amazon is profitable after Amazon fees.

This statement is false. Profitability on Amazon is not guaranteed and depends on numerous factors beyond just Amazon fees. While Amazon fees are a significant cost, sellers must also account for product sourcing costs, shipping to Amazon's fulfillment centers (FBA fees), advertising expenses, returns, and other operational overheads. A product might sell well but still be unprofitable if the total cost of goods sold and operating expenses exceed the revenue generated after Amazon's commissions and FBA fees. Careful financial planning and analysis are crucial to ensure profitability.