AWS Q1: 4.1 billion net revenue.
Rest of Amazon Q1: 4.7 billion net revenue.
Rest of Amazon Q1: 4.7 billion net revenue.
Ebay and Paypal split, but Paypal was worth a lot more than Ebay at the time and now it is worth ~10x as much.
If their scale allows it then you may wish to look closer, but their scale also allows them to offer unprecedented value to customers, which is generally the highest value for commerce in the first place.
Let's not destroy a good thing just because we can imagine it having some consequences.