Nah I'm going to push back on that, killing unarmed civilians actively contributing to genocide is not "immoral." This is the same argument for like why the Rebels shouldn't have blown up the Death Star, because they killed thousands upon thousands of "innocent civilians" doing plumbing or electrical maintenance or cooking on the Planet Exploding Death Ray Genocide Machine. Obviously "morality" here isn't relevant one way or another, these kinds of violent acts are the natural consequence of genocide, but there comes a point when unarmed civilians are no longer "innocent."
It's far more than cringe comedy. Nathan Fielder is perhaps the funniest person working in entertainment right now. The Rehearsal is a masterpiece that posits its impossible for any human to ever truly "understand" another, and demonstrates this in very funny ways. It skirts this insane line between total farce and genuinely insightful and sincere.
A really great followup to this is The Capital Order by Clara Mattei. She details the broad response to this in the aftermath of WWI, where fear of the Bolshevik revolution alongside vast nationalization of economies opened up tremendous breathing room for experiments and worker's rights. Mainly, the capitalists cooked up "austerity" in order to crush the power of the workers, and needed fascism in Italy to do this.
Protests are more of a ritual than a tactic these days. Protest is a tool, one of the tools in a toolbox to get what you want. They are not an end in themselves. If the protests aren't disrupting anything, if they aren't organized towards obtaining something or making somebody do something, they're not any better than a block party or an online petition.
America is the belly of the beast. No communist organizing in the United States is going to be remotely possible or productive until that beast consumes itself. The balkanization of the United States is basically a prerequisite to any actual revolution there, otherwise you'll just get Bernie-esque folks who are fine with worldwide oppression so long as the treats keep flowing. Any serious reckoning of America's past (and present) of slavery and genocide requires the widespread collapse of the American imperial project and the American imaginary.
The Chilean protest song El pueblo unido jamás será vencido (The people united will never be defeated!) has the exact same sing-along factor and vibe as Bella Ciao, I imagine it's what you're looking for.
I'm not saying his entire post is wrong. I agree that often the liquidation of low level functionaries of something isn't akin to an actual revolutionary strategy and often backfires, that's not what I'm arguing. I'm strictly pushing back on his statement that killing unarmed civilians is always immoral. Something can be both moral and still stupid/ineffective in the long run.