After living in Hungary I picked up on the fact that mother/son relationships are not what they are in the rest of the world and what we in the States would consider too close. I heard that it wasn't uncommon for married men to take their laundry home to their mother's house on the weekend, etc. Western Romania is still strongly ethnically Hungarian, so that could account for the similar prevalence there.

Is there much of a fetish for gay koreans and gay grandpas in Hungary?

It seems more likely the results are dominated by searches from one person, especially when there are no results for Slovakians or most of the Balkan states at all.