Apple has at most 10% of the computer market and is just one player among many. I am skeptical Microsoft with their 90% dominance would or should be allowed this much power over the industry.
The traditional personal computer market isn't nearly as important as it used to be. However you slice the pie, there's no way you can define the pieces to be 10% Apple and 90% Microsoft with a straight face.
90% dominance of what is increasingly a small niche market. Apple controls a large fraction of the mobile device market, and everything else runs linux.
The fact is outside of the tech scene, most businesses and consumers runs Windows. To say this is a "small niche market" is laughable. Microsoft is everywhere.
Compare how many millions of desktop PCs there are in the world, versus the billions of mobile devices.