So you're saying that we shouldn't expect any new competition in web browsing, and it's expected to stay an Oligopoly forever, unless a new entrant to the market gets a significant advantage?

That, too, sounds exactly like what would be needed to demand more government regulation of that market.

One of the tasks of the government is to ensure that any market is free to new entrants, and that only the best product wins, and network effects are eliminated.