There are also theories that Nicolas Tesla was ethnic Vlach.
He did spoken in Romanian with Henri Coanda.
Anyway, he was born and raised in Serbia. Not matter what Y DNA he had he was part Serbian,part American because a large part of his life he lived in the US.
EDIT:
I think Tesla was more American that Serbian, because a larger part of his life he lived in the US.
As for YDNA being linked to ethnicity I highly doubt any of the states:
US,Russia, European Union states, China or UK and rest of Commonwealth states will grant you citizenship because you have a certain Y DNA.
If you have I1 and you are not a citizen of one of the Nordic Council states, go ask citizenship to Finland,Norway,Denmark,Sweden,Iceland invoking the reason that you are bearing I1 as paternal line.
See what will happen
.