They are known to be bankrolled by James "Fergie" Chalmbers, American millionair heir, "communist" who by his own words "chants death to America every day" and is a supporter of the Russian invasion of Ukraine and has been on Russia state sponsored visits to the regions annexed by Russia writing glowing praises of them.
It seems likely that at least Palestein action are useful idiots for the Russian state. Which isnt to say that banning them as a terrorsit group isnt massive overreach and completely undemocratic.
Ok, given how this is a bot reposting everything posted to HN, how do you suppose complaining here is going to change anything?