I understand where you're coming from regarding British insularity, and perhaps it would be fairer if Esperanto were to have become the international language of aviation. Perhaps if Santos-Dumont had flown just a few months earlier, it would be French.
You mean Portuguese, surely.
Those worried about visiting FR only fields, might want to spend some time listening to these radio calls.
http://www.francoflyers.org/french-radio-calls.htm