Unfortunately, for the same reason that Russian influence found fertile ground in the US (MAGA), France (both le Pen and Melenchon), Germany (AfD and BSW), Italy (Berlusconi, Salvini), Hungary (Orban/Fidesz), Poland (PiS), Slovakia (Fico), the UK (UKIP, Reform, and relating to Brexit, the Tories)...
Unchecked globalization has led to serious economic devastation, and Russian propaganda picked that up and blamed it all on immigrants, and added a bunch of LGBT hate on top because that serves as a decent wedge issue for a group of the population that the anti-immigrant stuff doesn't catch that much. And on top of that, they made the immigration issue so much worse - Libya, Syria, Afghanistan and Iran all have Russia's bloody fingerprints all over them.
And as we're seeing, even the best democratic tradition doesn't stand a chance against economic misfortune.