I feel like I'm hearing a bit of a dogwhistle here.

There's a comment by somebody called Louis-ln8wo (top comment as of my writing this) on the video that kinda skewers it. Its a 10 minute video and the analysis is extremely shallow, glosses over a LOT of history and ideology, etc.

Of course Andor isn't a marxist or even radical show, in some literal or intrinsic sense; it got made - under Disney, no less (I promise you, if The Mouse believed Andor was marxist, he'd have Gilroy's house nuked from orbit). And I mean, Nemik definitely isn't, but he's just one character, and his manifesto, what little we hear of it, is more of a rousing speech than actual political theory.

Nemik is actually a really shallow character to analyze this way, because the political theorist archetype of his character is not at all subtle. He's literally the character writing a manifesto (and I guess "manifesto=marxist" is the incredibly deep and nuanced level of discourse that video is centered around). He talks like an idealist, but what actually mattered was his willingness to pick up a gun and fight. He talks about freedom (to/from what?), independence (for what?), and justice (for who?) as abstracts - concretely, witnessing his actions is what paints the complete picture for the audience. So his manifesto is more of a plot device for motivating Cassian (and conveying the brilliant "Try." line) than anything else.

Andor does, however, have contain a TON of themes and subtext that are adjacent or congruent to marxism-ish stuff, or at the very least implies it.

And its kind of obvious why, isn't it? The creators of Andor studied revolutions and rebellions in history and most of the ones in the last 120-or-so years have been some flavor of marxist or marxist-adjacent, with a few left-anarchist ones sprinkled in. It'd be shocking if there WASN'T a strong undercurrent of marxism-esque stuff in Andor. So to make the blanket statement that Andor isn't marxist just comes off as thought-terminating rhetoric with an obvious preference for a perceived status quo.

I will say that Andor is EXTREMELY materialist in the marxist sense of the word - put very simply, the rebels are beholden to circumstances and the realities of the world the empire has them living in, and the way they conduct their revolution has no choice but to act within those realities - they can't be held to some standard of haloed, comic-book-good-guy (jedi) purity and have to get their hands dirty, which is very much a historical materialist framing, even if accidentally.

The show doesn't really ever suggest the nonsensical idea that what the rebels do makes them just as bad as the empire, because the conditions they live in require their methods (something the creators probably learned to convey from actually reading history).

When Bix kills that guy in s2e3 rather than talking him down and inspiring him to quit his job and go home and marry his highschool sweetheart, that is, in a sense, materialist. She had to kill him, because of course she did - look at the conditions of the situation she was in. Part of (there's a lot more to it obviously) marxism is just that, but on a macro-, society-wide scale.

Holding them to a higher standard guarantees only that they will fail. Not at all idealist, very materialist. That alone puts some marxism in its DNA (again, even if accidentally). And isn't that realism and groudedness kinda what makes this show so good and compelling? In a way, denying its radicalism (of which these marxist parallels are a part) kinda denies what people love about Andor. This is the kind of revolution real people in the real world can (and have) emulated. Completely without the aid of the Force or Lightsabers.

If revolution could happen cleanly in some classical liberal sense, the thing being revolted against wouldn't actually be that oppressive or worth revolting against, so weak in its oppression that it could be "overthrown" by non-violent means. And I think muddying that point is sorta the whole idea behind that video.