Who's paying Neturei Karta?

I just read an article saying that Neturei Karta are joining anti-Israel protests in Italy. I've seen them in videos all over the world, promoting anti-Zionism (and in essence, antisemitism). Who is paying these people? It's not like they have real jobs.

https://www.timesofisrael.com/liveblog_entry/flights-and-trains-canceled-as-anti-israel-activists-rally-against-italian-pm/