The problem for amazon that strong competition is appearing. Walmart is starting to take ecommerce seriously. And growth is declining(maybe they are related ?)

The problem for amazon that strong competition is appearing. Walmart is starting to take ecommerce seriously. And growth is declining(maybe they are related ?) . And i don't think this is exactly overnight. Prime, and amazon's customer service are good examples of amazon trying to build a "love" brand. To some extent it could be a desperate move by bezos - because what if in the future people will prefer to do their ecommerce via phones ?