I grew up in a home that spoke another language. I'm glad there was on obvious lingua franca to learn that's allowed me to work with people all across non-English countries in Europe, Africa, South America, and India, and will probably continue to serve me well.

I'm not opposed to people developing tools in their native languages, but let's not pretend like projects that use this language aren't going to be completely isolated from most of the rest of the world.