> it's not even feasible for the vast majority of individuals, companies or even governments to compete with it.
You haven't defined what "compete with it" actually means here.
> Google also controls the largest search platform
If it was only a search platform, this would hardly matter, because search engines are not hard to replace. But Google search is merely the entry point to a much larger system (notably, a vast online ad platform and data collection system), and that's a problem.
