A simple answer is because wether you like it or not what happens there influences global politics. Global politics influence the flow of goods and people and how your national politicians position them selves. So it influences, to some degree, what your next phone will cost, fuel prices, your bread prices etc. And emigration and refugee flows to your country and the rise and fall of different political themes in your country.
I am in the same kind of situation. I personally hate both windows and mac. I have no tech rizz, but I ran ubuntu for the last 6 years (before surging currents killed my laptop) as win 8 gave my laptop “cancer”. My guess would be some kind of think pad with a linux distro on it. And don’t worry, if you can use a search function finding a linux distro and installing it is so easy even I managed.