How?
It must be created an open source global non-profit organization like Mozilla https://www.mozilla.org/es-ES/ where the focus is creating better ways of connecting the people to public transportation by making open source and libre apps that rivals in quality with Uber clone and friends.
Conclusion
South America or Europe should make the first move in making an open source Uber clone. Other countries could fund this application by donating money to the global non-profit organization.
A better public transportation is possible if all the countries unite and create an open source alternative.
Check out the complete product page on Alikeapps – Uber Clone Script.