tl;dr: this appears to be an inauthentic Che quote, and the meme seems more or less designed to paint anti-Zionism as anti-Semitic, decolonization as annihilationist/genocidal, etc. I’ve reported this post.

The language of extermination is obviously fraught in this context and plays directly into the hands of those who would equate Zionism with Judaism and Jews. It’s also repulsive in its brutality and childish in its simplicity, even in contexts where it is understood that force is necessary to resist oppression.

Beyond that, the idea that there’s an analogy here isn’t credible. Who is in a position, in Palestine, to oppose and crush a fascist movement in the way successful domestic opposition to fascism has ever been carried out?

Searching for more context, I found a transcript of what appears to be the text of the speech named. It doesn’t mention fascism at all. It does (naturally) address colonialism, which obviously does have a great deal of relevance to Palestine. Maybe we should post some real quotes from that speech instead. He does mention Palestine once:

When we send our greetings from here, and from all the conferences and the places where they may be held, to the heroic peoples of Vietnam, Laos, so-called Portuguese Guinea, South Africa, or Palestine — to all exploited countries fighting for their emancipation — we must simultaneously extend our voice of friendship, our hand and our encouragement, to our fraternal peoples in Venezuela, Guatemala and Colombia, who today, arms in hand, are resolutely saying “No!” to the imperialist enemy.

All of the results I can find for the phrase “exterminate them with bullets” from a quick web search are this very meme, posted simultaneously here, in Hexbear, and various leftie subreddits. I’ve reported this post to the mods.

I’m not on Reddit. If anyone lurking here is also on Reddit, would you please do a web search on the post title and/or some phrases from it and report those posts for our comrades on Reddit? (A couple posts come up when I search on DuckDuckGo, and at least one does on Google)

I don’t have answers as I’m still learning the history myself. But I’m currently reading The Hundred Years War on Palestine, which covers 1917-2017, so it gets you a detailed look earlier than 1947.

More crucially for this discussion with your uncle, perhaps, it describes the emergence of Zionism and Israeli identity as a modern phenomenon, as something distinct from just ‘ancient land disputes’.

It’s available as an audiobook if you find that helpful, and you can find the ebook in Library Genesis if you otherwise have trouble getting a copy.