Hungarian population have been declining for decades [1]. Hungary has already lost 5% of their population since 2010. For comparison their neighbour the Czech Republic has been growing [2].
[1] https://en.wikipedia.org/wiki/Demographics_of_Hungary [2] https://en.wikipedia.org/wiki/Demographics_of_the_Czech_Repu...
Wow... I guess that plausibly explains why I see an n = 2 without looking for it.
For what it's worth I had a conversation with someone in the same situation just the other day. They have a Hungarian passport but currently live in the Netherlands. They're not thrilled with the prospect of having to nationalize as Dutch, just due to all the bureaucracy, but they're getting the ball rolling now vs waiting to see how things pan out.
I think it's quite unfortunate as it will mean that Hungary will become less pro EU, simply because the really pro EU people (that are also highly educated) seem to be going out of the country according to my anecdata. It's n = 2 to be fair, but I think it's enough for it to warrant some more research since I am simply stumbling across this group of people, I'm not actively seeking it out.