English is, according to the Defence Language Institute in Monterey, CA, one of, it not the most, difficult language to learn (because so much of it is irregular), but, having learned it, are English speakers at an advantage?
Whut? English is _easy_: no grammar cases, simple pluralization rules (with a handful of exceptions), only about 100-200 of irregular verbs that are still in use, grammar tense system familiar for just about every West European language speaker and so on.
Sure, there are problems like a disconnect between spelling and pronunciation but this is minor compared to, say, leaning the grammar case system in Finnish. And even the pronunciation problem is not so bad if you mostly communicate in _writing_.
I think there's a world market for about five computers. -- attr. Thomas J. Watson (Chairman of the Board, IBM), 1943