When so many people start voting for these psychos, maybe your more moderate parties need to pull their heads out of their asses and start asking why people are breaking this direction in droves. And I mean like a root-cause analysis “why”. If you just treat the symptoms, you’ll generally just make it worse.
Labour and LibDems in the UK, and Democrats here in the US found that out the hard way. France is struggling with FN. Poland is only recently pulling back from that idiocy. Hungary is… Hungary.
There’s definitely foreign (by which I mean Russian) influence going on, but you can’t just call that out and throw up your hands. It’s a multi-front struggle. So yeah, maybe actually let your intelligence services fight against that effectively. But also, make cogent, helpful policies to your citizenry that are actually meaningful to the middle class. Communicate to voters. Loudly and consistently reject extremism and prejudice. And don’t stop. We can never stop. Because the fascists won’t either.