A. aren't r&d/infrastructure,
B. will have to be earned back, and not just 1:1 either...
So even if whatever competition is knocked out, anyone entering the space after that, and not saddled with legacy funnycost, won't need your efficiencies and economies of scale to manage an edge in pricing. And market dominance can't negate lack of friction for eg drivers and riders to run a second, third, fourth app all at once.
But the sun appears to be settling on bizarro cargo culting Amazon being seen as a viable business model.
As a consumer I'll miss it!
I'm not sure I can get behind that bet, but it's not an inherently absurd idea. Imagine explaining to someone in the early 70s why Wal-Mart is going to grow from a Southern department store chain to the largest company in the US.