I live in Canada, less than 100km from the US, and it’s a pretty commonly used term. I’ve heard it come up in the beer league hockey dressing room in casual conversation multiple times.
I first started hearing the term occasionally in high school history class, then heard it more at university in political discussion contexts, then again a ton more in the past decade or so given what’s been happening leading up to the current war.
It is not a propaganda term, it is literally the term for people who believe that Jewish people have a right to an ethnostate around historic Jerusalem.
This is a category of people that include some Jews, but not all Jews, and not exclusively Jews, it includes some Israelis, but not all Israelis, and not exclusively Israelis.
Some people wear the term proudly, and some people view it as the devil incarnate, so it’s a term that can be used hatefully or non-hatefully, but it’s not specific to Lemmy.
You’re probably seeing it be used more in general these days because people critical of Israel are trying to be specific in their choice of language and just criticize the supporters of the idea of the Israeli ethnostate rather than Jewish people more broadly (obviously anti-Semitic), or even Israelis more broadly (which sweeps up many Arab-Iseaelis and other citizens who don’t support their state), and misses the non Jewish / Israeli people who also fund and support the state of Israel for various reasons.
I quite frankly don’t know how to put this in a completely un-critical way, but I genuinely think it’s an example of Americans’ quite frankly, overall crappy public education system, and how insular and self focused it is.
Most other countries spend more time on world history, as opposed to their own national history for instance in school. If you only ever covered American history, and world war two up until the point that “We Won!” then you would never really cover the history of the middle east leading up to the world wars, or the rippling aftermath of what displacing the local people to create a Jewish state would look like.
American conservatives also tend to be a group that cannot deal with any guilt or shame whatsoever, so don’t like covering any parts of history that makes them look bad, and given how lock step America has been with Israel, and some of the atrocities that Israel has committed, that results in them not talking about or criticizing Israel or Israelis, which means they don’t ever need to distinguish between Israelis at large and those who oppose the state of Israel or its ethnostate policies.