This would be more plausible if VCs weren't spending billions openly trying to create the sort of market dominance that lets them exercise outsized pricing power. The book
Super Pumped, for example, shows clearly that Uber was seeking a monopoly. They only got a duopoly in which they're the dominant player, but from a pricing perspective that's nearly as good.
It follows from VC efforts that market dominance produces massive profits. That money comes from somewhere. Anti-trust enforcement is way too weak in the US. Congress's motives in going after the tech companies is decidedly mixed, but given decades of laxity, I'll take it as a good start.