Just as an aside, Fr. Dmitri Sidor would call himself a Russian.
He is part of a very small minority in Zakarpatia who still adhere to the Russphile party/movement & orthodox movement of the late 19th century. He wants nothing to do with Magosci or people in the USA who identify themsleves as Rusyns and not Russians.
On the other hand there are the Rusyns, under the leadership of Prof. Paul Robert Magocsi, who is president of the World Free Congress of Rusyns, who see the Slavic people of this area as a distinct ethnic group with their own language, history and traditions.
Read any of Magocsi's books or brrochures. If you do, it is interesting to discover how ethnically diverse this area was throughout history. Lots of Hungarians, Slovaks, Poles, even Germans. Also magosci mentions that the Ruthenians were the poorest of the poor. I am only adding this in case people think that the so-called Rusyns were ever had a donimant role in the area until after WW2. There was a lot of re-settling and voluntary and involuntary movement of ethnic groups then.