Amazon accounts for 43% of all online sales last year. They have a market cap 10x the largest than kroger's and costco. You would have to be incredibly naive to

Amazon accounts for 43% of all online sales last year. They have a market cap 10x the largest than kroger's and costco. You would have to be incredibly naive to think they arent going to easily go scorched earth and put dozens of companies out of business. That sounds pretty anti-competitive to me.