the whole point is that he eschews classical logic/rational actor stuff to begin with, the operating "logic" is typically "i feel like it" or "i feel like it'll be annoying later if i don't."
"I'm curious how pissed off you'd be, and how strong you are exactly, so here, i'll taunt you and get you to use max power." "I wanna see if you actually can convince me, i read about that talk-no-jutsu bullcrap in typical shounens, so what does that actually feel like?" "I have an idea, i believe, of why you're doing this... but i'll ask because it never hurts to know more."
It's not "go with the flow," it's "set his own flow." Which is why he gives no fucks about training except to get people to stop nagging at him (and then stops as soon as the nagging falls behind his annoyance/pain/fatigue). Which is why he helps out picking the present, because he is interested by aaliyah, because her behavior has written that into his flow.
Condescending assholes go "inexperienced! poorly written!" not understanding that it's meant to be impulsive, inconsistent, and filled with double standards.
He's a high schooler, and especially childish and petulant... and brutal. You're declaring it "bad writing" because you like the funny overblown and harmless chuuni trope, not this logical extreme of that very same.
People IRL use double standards all the fucking time, especially foreign policy and politics, but one sociopath using it in everyday life is enough to set you off? What "poorly written," there's people out there firebombing cities and looting resources under the name of democracy.
edit:
if you want to accuse the author, accuse him of self-reporting some very creepy tendencies/freudian slips, but don't accuse him of making a shit character when all he did was make a character operate off of fundamentally different principles. (have none of you heard of NIMBYs? the classic "got mine, fuck you" attitude? the lolbertarians saying all authority and rules and laws are bad?)
Otherwise a guy could write about a real, living phrenologist (or better yet, a guy who claimed that you needed enslavement to make any valuable art! who also wrote about, similarly, "will to power" and eschewing both classical logic and dialectics!) and yet be accused of "bad writing," at which point the whole idea of "badly written character" is invalidated.
edit 2:
again, think an experienced player in a game doing NG+ shenanigans, clicking shiny buttons they see when they have the energy and otherwise lazing about in their favorite corner otherwise. they fuck around, they don't give a shit insofar as they can keep lazing, if it blows up they're excited to see where it's gonna go but also very nervous cuz they're afraid of losing their acc/save file, they get super on-edge when they think they'll be forced into events instead of being able to take it at their own pace.
I kind of understand what you're getting at, but it's not like being impulsive and inconsistent makes him interesting in any way, especially with someone who's as shallow as a movie villain's backstory.
So then, what are we supposed to find interesting about this story? I mean, we've already witnessed him hide in a shadow away from
"danger" despite his 90% stat debuff being in effect, so I guess there's no reason to worry about his
ultimate weakness going forward. OP powers don’t automatically make a character boring—plenty of great stories feature overpowered protagonists (I.E. Saitama, Ainz Ooal Gown, Cid Kagenou, etc.) I just can't seem to find what else this story has to offer besides his powers, it being an isekai, and that he has a "—
unique personality—" And yes that's in quotations because I don't believe him having different values or principles excuses the fact that he's an incredibly one dimensional character.
Don't get me wrong, you can write a "good" psychopath (I.E. Dexter, Light Yagami, Tanya Degurechaff,) So It's not exactly his characteristic that's a problem, but that Takafuji here is still uninteresting in a lot of ways and really is just a one dimensional character who's edgy for the sake of being edgy. Dare I say he's...
—poorly written.
Now a story doesn’t need to be deep to be entertaining, but it does need something beyond surface-level edginess. Takafuji’s whole ‘I don’t care about anything’ attitude just feels like an excuse for weak storytelling, since that’s all he really has going for him. Takafuji lacks depth—no goals, no real motivations (besides simply surviving?), and no meaningful internal conflict.
I also don't completely understand your inclusion of the double standards analogy. "Firebombing cities under the name of democracy" Sounds like something straight out of Helldivers. This is a fictional story about an illogical kid in an illogical fantasy world with an edgy flair to it and very little world-building, we're not reading foregin policy documents. If the story or the character is bad then people are gonna talk about it, and if both of those aspects are good, people are still gonna talk about it. Not everyone's going to enjoy it when the Mc kills off the most interesting characters, simply because they're a
"psycho/sociopath" It lacks any other particularly interesting reasonings behind what he does. It's shallow.
So in conclusion, Takafuji is not a well-written character. There is no depth, no meaningful motivation behind his choices, and no real stakes in the story. There’s no reason to care about his fate at all. But then again what does it even matter? People don’t read this kind of story for complex characters—they read it for the edginess, the ‘evil MC’ power fantasy. And that’s fine. But still, Takafuji isn’t just a character with different principles; he’s a hollow one. His only defining trait is that he operates differently from traditional protagonists, and that alone isn’t enough to make him interesting.
