Amazon is growing quickly, and entering more markets..

but there's no reason to be alarmed. Amazon really isn't as big as they look. Revenue last year: $107B

Compare that to other things: About 1/5th of Walmart. 2/3rds of CVS. 10% less than Costco. 1/3rd more than Target. 15% more than Home Depot. Sure they're #1 in ecommerce, but ecommerce is only 16% of retail sales in the US.

There are actually quite a few companies the size of Amazon. And many of those companies are actually more profitable than Amazon too.