Why do you say that doing e-commerce is dead, and not doing e-commerce is also dead? How to understand this sentence?

Being an e-commerce is dead, which means that the early promotion of e-commerce is a long process. Customers need to accumulate and websites need to be promoted, which requires a lot of money and manpower. I don't need to say how much it costs to advertise now, you can imagine. . . Finally, it depends on which boss is strong enough to stand up! If you don't do e-commerce, you will die, which means that China will enter an information age of Internet of Things in the future 15, and e-commerce is an indispensable format in this era. Many large enterprises, such as Taobao Mall, Suning Suning.cn and Wal-Mart, have their own e-commerce platforms. These examples all illustrate what the future development trend is, and I don't think I need to explain them in detail. . .