Ok. David Lynch. Great director, often deals in surrealism. Dude is accomplished, and helped popularize that whole surrealist style.
FLCL. An abortion of an anime aiming to be surreal and out-there but ends up falling into the territory of obtuse and "lol SO RANDUM XD".
Seriously, no part of this makes sense. I'd talk about the plot, but there is none! Non-linear story structures are cool, I often enjoy them, but there needs to be some kind of story. Something has to happen. And no, random monster fights aren't an actual plot point. Sorry.
Then we have the characters. Generic audience insertion autistic school-boy and "I'M QUIRKY!" alien girl. And a robot. Wowww robust cast, no? And not only do they start out bland as all hell, but they outright refuse to evolve. Character development? Fuck that noise.
Oh oh, then the voice acting! Teach a sloth English and you'll have the male VA, and teach a fifth grade girl naughty words and you'll have the female VA. So good! ...
Even if it was just random fighting, that might be good to watch, you know, for the visuals. But no, this show is caught between the horrible anime animation of the 1980s and the slightly better terrible animation of today. It's just no man, no.
This is basically an animation of the imagination games my friends and I would play in first grade.
"Now I'm a robot! PEWPEWPEW I got you!" I would scream, "shooting" my friend with a mock gun formed in my band. "Nooo I put up a shield" he would shout back, his arms held akimbo, simulating a force field.