The oligopoly is not a "love affair", that's how IT works: prime mover advantage, "move fast and break things" (the first of them being interoperability), moats, the brittleness of programming...
The whole startup/unicorns ecosystem exists only because there is the possibility of becoming the dominant player in a field within a few years (or being bought out by one of the big players). This "love affair with oligopoly" is the reason why Ycombinator/HN exists.
It's correct that these are political/economical decisions. But most people in society neither have the knowledge for an informed opinion on such matters, nor a vote.
The whole startup/unicorns ecosystem exists only because there is the possibility of becoming the dominant player in a field within a few years (or being bought out by one of the big players). This "love affair with oligopoly" is the reason why Ycombinator/HN exists.