>>47787
Probably the best to describe is as battle for identity.
The Scythian and Hun heritage reaches back to ancestors who broke empires and created empires themselves. Rulers of ours traced back their heritage to Attila himself and with the sure knowledge of their worthiness they entered in every undertaking of theirs.
When the idea of Finno-Ugric kinship rose in the second half of the 19th century, we just had almost broken an empire (the Habsburgs') and they could only save it with the help another empire (Russia). But the Finno-Ugrics were noones. In fact this group did not even exist until that point, and even in the written sources those tiny folks appear fairly late (liek in 16th century). So for many it felt as a slap in a face when this was pushed into the scientific thought, in a time when they (chiefly Germanics) started to tell us that we are small, weak, we are noones. And while that idea widened the prehistorical research - and indeed many who considered themselves nationalist followed that path -, soon the Finno-Ugric linguists demanded the sole control over Hungarian prehistory, and narrowed the research back, but towards another direction. Geopolitical interests demanded from us to accept our status as noones, be happy with our destroyed and divided country, not to turn on our neighbours, not to raise some ruckus. Then Soviet Union wanted us to accept our vassal status, not to rebel, to accept we are weak and noones. The Finno-Ugric ancestry very well fit into this and was supported politically by internationalists (and it seems still supported by them to date).
Meanwhile nationalists tried to hang into the tradition, and told that we aren't noones, but someones. We were and we can be. But nationalists in a Marxist-internationalist country are just a powerless obscure group. After the regime change they started to get louder and turned out lots of people have feelings towards their country and nation. There is a demand for nationalism. And they are curious about our history. Tales and myths also were told (and the Scytho-Hunnic kinship also was pushed into the world of tales) and these are more easily digestible than linguistic gibberish, so it was easy an easy reach towards the traditional explanations. And it is popular. People visit kurultaj and stuff in masses.
History of a nation gives an identity to her. Two different stories give two different identities. It is important what we tell ourselves who we are, and the sum of our past actions is what we are, this is true for individuals and folks.

Maybe a bit idealistic and oversimplified, but more or less that's it. I'm not sure if this answers your question.