Melbourne, Paris and London all have their own big sports and all over the years have supported International Rugby League, sadly (outside Melbourne recently with the Storm) the club game was never a big thing. Even in the other Rugby code it's the same in these cities, club crowds underwhelming whilst Internationals well supported.
They have their soccer and afl that grabs them week in week out which is fair enough, the people have voted. Doesn't mean other sports shouldn't try and get a bit of the action, just have to fight harder for it.