One of the reasons why English is so widely spoken is that we used to have a massive empire that covered much of the world, those days are sadly no more.
The more languages you learn to a reasonable standard, the more chances you have. There are plenty of British people (not just pilots) who are fluent in several languages, personally I’m only fluent in English (as much as anyone from Somerset can be) but I have a reasonable grasp of French and that’s my own fault for not getting off my backside and learning more when I was younger, no-one to blame but myself.
The simple fact remains that if you wish to live and work in country where English is not spoken as a 1st language you are going to have to get a grasp of the local language just to survive rather than expecting every national of that country to speak your language.