Eh… it’s probably not so much that they are demanding their language be spoken…
More a case of the tourists are probably being dickheads in general and the locals have had enough of their shit. That and the locals would like to be able to enjoy their own beach without having to wade through masses of tourists.
He’ll probably invest his remaining billions in developing a way to thwart adblockers next. It will be as successful as everything else he has done in relation to twitter.