Admittedly this isn't a subject I know very much about. I used to spend a long time trying to explain to people I met overseas about what Brighton & Hove Albion was, mainly during the old Div 3 and Div 4 years, and I still can't get my head around us being part of this global sporting circus...
I don't think a club like ours will ever pull in more than a tiny numbers of vaguely interested football fans from beyond our own county, let alone country. There'll always be a few that call themselves supporters of Watford/Sunderland/Bristol City/Fulham/Brighton because of some match they saw...