In my experience, the only people who are open to radicalization and aren’t going to turn and run from a Marxist speaking about communism are people who are currently politically apathetic. When someone develops an interest in politics, they have a lot of questions that need to be answered.
This is why our rhetoric is so important and so valuable, we have to be the voices these people hear first when capitalism fails them. For me personally, my interest in politics began in my teenage years. Unfortunately, the rhetoric that found me first was fascist rhetoric, and it took years of deprogramming, reading literature, and having a Marxist family member be there to guide me to where I am now.
So, clearly it’s possible to deprogram, but it’s a personal choice someone has to make to want to be deprogrammed. Our efforts are better spent on those in our lives who have yet to develop their political identity.
There is probably some difference between Czech and American experience. Even here there is certainly some development, especially in younger generations. Especially now as Czech Republic is one of the places most affected by current inflation. But unfortunately I rarely see anyone from younger generation getting past I wish we had system as Sweden.
Funnily enough, from what I’ve seen, hate for communism is only getting stronger now. Partially due to Russia (because it is totally communist) and partially due to propaganda. It is really interesting (and sad) to see. For example, my own father grew up in Czechoslovak Socialist Republic his life was pretty good (arguably better than now). I remember from my youth he didn’t identify with socialism, but he usually had pretty good things to say, things like if you were a worker it was definitely better in the past regime. The education was better etc. Now he is extremely anti communism.
Hopefully the contradictions in capitalism will radicalize more people. But at least here they are radicalizing them mostly to the right. Hopefully with continuous rise of China and other AES it will get better.