( In this sense, you are sounding more like your albanian counterparts with their illyrian arguments. )
2) You also dismissed one important event that divided all of the empire builders whether its the byzantines, serbs or bulgarians. You forgot the schism of 1054 which basically was the medieval iron curtain that divided the roman catholics and the christian orthodox in trade. So serbian dalmatia would never have existed because of this schism. Venice basically destroyed constantinople in the 4th crusade for economic power and likewise they wouldn't want to have any competition from the serbs.
Get it?????? Dalmatia was under Venice for 800 years and later parts of it had been under the Ottoman Empire. By the way, the merchant venetian jews had been under power between both sides..Just a side note