So much worse than Gummo...
...The film Trash Humpers tried being a sequel to, apparently, but failed.
Harmony Korine's said before in interviews that he tries to be as unattached as possible when directing his films. This is a method I understand and respect, but the reality is it's hard to base a plotless film around entirely unsympathetic characters because of the shortage of elements which compel an audience to continue paying attention.
All of the Gummo protagonists were kids--some more innocent than others, admittedly--all of whom we cared about, because they weren't actively being malicious. This opposed to the chronically mean, vicious, sociopathic protagonists in TH, who just broke *beep* in every other scene and were unrelatable to in any way except by the criminally insane. The Gummo kids may have been coming-of-age in bizarre ways, but we were still able to relate to how they perceived their experiences. The TH characters' apparent absence of humanity, on the other hand, made them caricatures, and their motivations inexplicable (and, presumably, irrelevant).
In addition, there's just nothing artistic about a 70-minute montage of violence. Gummo's distinctive, eye-popping set designs helped put its violence in a context, providing a contrast from the bleak and the raw. I understand TH style choices, but they worked against the film on an (ironically) artistic level.
Shame on Harmony Korine for jumping the shark with this lazy, repetitive, self-indulgent, mess of a "film"; Basically nothing more than a safer, more practical version of the never completed "Fight Harm." http://www.harmony-korine.com/paper/index/i_fight.html For a Gummo II that works, see Julien Donkey-boy instead.