That's a pretty sweeping generalisation on it's own. You personally interacting via iMessage with people in the EU has absolutely no bearing on this. When people say that 'no-one' uses iMessage, they are really saying saying that it's a very small percentage. It's like saying 'no-one uses Yahoo! mail' - relative to GMail and Outlook.com, it's use is vanisingly small these days, but I guaruntee that there is a not-insignificant number of mail originating from Yahoo domains.