English is clearly the lingua franca.
Like it or lump it!
Glad my mother tongue is not the lingua franca. It's the global language appropriated by the melting pot that is northern America, with mandated speech in places like Canada. I think with that it loses some of it's authenticity... other languages don't have to subscribe as much to pc culture.
It's an excellent second language to use to communicate on the internet and in business, but fortunate not to have it as my 1st language. It's nice to have a smaller language that is specific to a certain group of people, easier not to step on any toes.