Blackmailing by Orban and his party, not Hungary.
The biggest issue is that the majority of the media is controlled by the government. Also they own jurisdiction and have been gradually rewritten the constitution. Most people who support this regime do that because they believe the propaganda. Many people I know have been bitterly trying to tell their family members that they are watching / listening propaganda (unsuccessfully, for years). Most of Orban's supporters don't know much about politics, they just want to live their lives, so they believe whatever is on TV, radio, online media, posters, etc. For many it is very hard to see what is true and what is lie.
But there are many, many people here who don't like this and want a change. The country is in a state where positive change towards democracy is really hard at the moment, many of us still want to believe it is possible.
By the way, we could see this madness around the world in the past years: Brexit, Trump, Bolsonaro… many people can be led by their nose. Not just in Hungary. I really whish if people would learn from Hungary's mistakes, and don't let the same thing to happen in their countries.
Many people actually do that, because in their minds alternative is "left" that will do the same but with added bonus of supporting LGBT, fight against climate change, unrestricted immigration and such. And getting traditional true patriot of country X rich is preferred to fattening this dirty commies traitors on the "left".
https://www.journalofdemocracy.org/articles/how-viktor-orban...
Nonetheless, in 2014, five center-left parties formed the Unity Alliance. One center-left party (LMP) refused to join, splitting the center-left opposition vote. This cut in half the number of constituencies that the opposition would have won that year, allowing Fidesz to capture 91 percent of the constituencies with just 45 percent of the vote. Still plagued by infighting, the opposition remained fragmented in 2018, even as it gained strength in Budapest. With 49 percent of the vote in 2018, Orbán won 86 percent of the constituencies, losing in Budapest but winning almost everywhere else. The 2014 and 2018 results showed that only a unified opposition that spanned the political spectrum could defeat Orbán’s system.