There were many lingua francas of which French was supposedly the first global lingua franca. That changed and it became English (from what I understand). We will probably see another language become the lingua franca, so my question is: should it be English? Are there better candidates out there? Why / why not?
Westerners = Europe, USA, Australia, New Zealand
Indeed. I just looked it up and the writing system is logographic. To my knowledge, not a single Western language is logographic and more alphabetic. The tonal system is also rare (not sure if exists at all) in Western countries.
To me, those are two major differences that are difficult to overcome.