I think there's a difference between an eroticised scene of SA and one that is supposed to be genuinely disturbing.

I would say that this scene in Dandadan is eroticised. It's not the same.

You don't need to show anything that some people would put on a website for kink content with a bunch of extremely specific tags to make the point you're making, as a director. It has that intentional gaze of a lecher built into it.

the evil bad guys are japanese salarymen aliens, slumlords, and imperialist globalists.

I don't really disagree with this part