I don’t know about Hungary, but when it comes to Slovakia Fico is hardly representative of the wider society. There have been massive protests against him and his ilk ever since he somehow managed to squirm his way back into power. Slovak society is basically 50/50 split between the EU leaning urban centers and the Russia leaning villages (very crudely put, it’s obviously more complicated). But the main reason for the anti EU-stance of Fico is very basic: corruption. Thankfully there is little chance of Slovakia turning into an Orban style illiberal democracy because there is not enough support for it within society. Orban had an absolute majority in parliament for over a decade, Ficos Smer, even combined with its offshoot Hlas, doesn’t come close to that. They’re only in power because they allied themselves with the extreme right. Their powerbase is also slowly crumbling as their vote share amongst the younger generations (45 and younger) is minimal. Slovakia will be ok, but it still has to shed some demons from the past first, which is an ongoing process.

Because thats why they are in the EU, to act as a mole/terrorist cell to destabilze the EU so that Putin has it easier to swoop in.