Genome stuff is interesting. What nation isn’t genetically a melting pot? Linguistic evidence needs to be sanely appraised, too. In the New World Africans speak English, French, Portuguese and Spanish ... Onomastically it’s plain that Croats with names like JOVANCIC in Slavonia are Croatized Serbs (Sokci). The name of the Serbian area above Sarajevo, Romanija, says plenty.The Hungarian name Kovacs ~ Kovats ‘Smith’ is unmistakabnly Slavic, whether Slovak or Serb. CeauceSCU (-ski), too. Romantics, to be kind, in all tribes, believe in nonsense. Venetians and Slovenes wannabe the descendants of the VENETI. Serb Romantics claim Serbs are the oldest people in the world; in Serbia this has provoked a satire “The Serbs Before and After Adam”. US “diplomat” Frank Wisner (the man from Enron)runs around reciting a propos of Kosovo the silly chauvinist claim that Albanians are the Urvolk of the Balkans. Marco Polo is claimed as a Croat. Scots of Galloway will be insulted if told they are a mix of Norse (well, OK) and Irish —oh gawd, No!. Even the great Cavalli-Sforza refers to “Yugoslav” as a homogeneous geneetic area. In Dubrovnik the patron saint is Blaise. If the place were Croatian at bottom,. the name would be “Blazej”, but it’s “Sveti Vlaho” —Serbian.
As for Sv. Vlaho, that isn't a Serbian name. "Vlaho" means "Vlach". It's also a very common name in many forms across the Balkans as a surname such as Vlasic in Croatia, Vlahovic in Bosnia, Vlahovski in Macedonia, and Vlahos in Greece.
The Serbs of Northwestern Bosnia have names that are entirely Croatian, such as Bilic. Vojislav Seselj is the only Serbian Seselj....all other Seseljs are Croatians.