this is not amazon strategy to ever get rid of the ecommerce business.

Amazon strategy is to become a leader in many fields, they got lucky and envisionned the potential of cloud early, for commerce of goods it is a thousand year old industry with big competition from all other the world, their goal is to cut costs, not to care about short term returns and once other businness collapse due to prices cuts that they cant folllow, then amazon will be the only leader in commerce and will rule the price of pretty much everything that is traded in the world.