> Funny how you say total spending and then argue with a percentage
... so? Total spending is the key factor; Apple gets exposure to 25% of the total human economy by catering to one polity which is also the easiest one to do business in. That's a no-brainer if I've ever heard one.
By contrast, India's economy is only 3% of the world total. [0]
It's interesting to note that this understates US dominance in luxury products - due to being rich-person-friendly, they actually have far more than 25% of the world's rich people - 38% according to page 28 of [1]
Which market would you rather target?
[0] https://data.worldbank.org/indicator/NY.GDP.MKTP.CD?most_rec...
[1] https://www.ubs.com/global/en/family-office-uhnw/reports/glo...