I love Linux, but if 90% of the US were on Linux the same commercial / political pressures would apply and Linux would just look like Android or ChromeOS. Can you run an alternate OS on your smartphone? Yes, but you can't run your banking app. Linux alone cannot save us.
If nobody participates in government, the banks and entertainment industry will get whatever they want, which is to lock down your computer into a portable kiosk
What do you think happens behind closed doors at the WTO, Davros, TED anywhere immensely powerful meet up to discuss the world's future outside the view of prying eyes?