Nice, but there has always been a tacit understanding, at least since the end of WWII, that Slovakia would allow for the rights of the Hungarian minority (who had borders redrawn through no fault of their own) to speak their own language, have their own schools, etc. This is the same as the Germans in the South Tyrol in Italy. These folks have been in these regions for quite a long time. They are not “illegal immigrants” and Slovak Culture is not based on the “assimilationist” model.
End of story.