Yes, but is the thing they're upset about and the thing they're directing their anger towards actually linked?

It's often hugely successful in politics to say "all your problems are the fault of this external bad actor" rather than "we have a problem and it's going to take a lot of hard work to fix it". It's very easy to blame external Jewish financiers (George Soros always gets a namecheck) and gay people for all your problems. The last time people did that en masse in Eastern Europe it ended up with extermination camps and millions dead.

Arguably Hungary's problems are due to the international finance industry, but there's nothing especially Jewish about it, just good old mis-selling. See e.g. https://www.ft.com/content/6c27cfbc-f50b-11e2-94e9-00144feab... - Orban took on the banks, which has to have been a big help to his popularity.

The EU is not blameless in this: https://www.escp.eu/news/eu-convergence-narrative-played-key...