The push is not to make monopoly (defined as market share) illeagal. Lina Khan and others are fighting good fight against misuse of monopoly powers, two sided

The push is not to make monopoly (defined as market share) illeagal. Lina Khan and others are fighting good fight against misuse of monopoly powers, two sided markets, anticompetitive effects of platform-based business models and so on. GPU market is not natural monopoly, nor is the market structured as monopoly. Nvidia just has a competitive advantage.