:::No kidding. Srbija do Tokija? ;) 
 :::There's no denying that non Serbs became Serbs, and that modern Serbs have some non Serb ancestry. But that doesn't make the ancestors Serb. 
 :::The same comment applies to the Morlachs and the Vlachs of Montenegro, Hercegovina, etc. The historic sources differentiated between these Vlachs and Serbs, but their modern descendants consider themselves Serbs.