A kid watches people defecate out of curiosity

Supernatural leftists threaten an elderly capitalist at home at night.

spoiler

Guy invites children into his chocolate factory, let almost all of them die.

A small rodent is given a tasty dessert treat and then demands more and more things.

Neglectful parents forget their child at an airport while airport security screws up. Neglected child finds them self in a different city and turns to crime to survive. Child unknowingly takes directions from a known child predator. Child also befriends a local homeless lady. Child then plans out an elaborate torture mansion on 2 dimwitted burglars.

Child says their goodbyes as the moon approaches

Old man's wife dies and he goes on a trip to South America and starts a relationship with a child.

Ordinary young woman is forced to take on the financial responsibility of a monarchy. Unable to carry the burden by herself she enters a pact with an unnamed stranger...

A manic career thief turns back to his old ways after a long break, and his crimes prompt violent retaliation against his family. With no alternative, he turns to terrorism, arson, and eventually murder to protect his family and continue his criminal lifestyle.

in collusion with the swine and livestock, a super-intelligent Spider manipulates a farmer--putting his household at risk of starvation--by weaving special patterns into her webs. Will he find the strength to outwit this probable government experiment's devious plan? No. No, he won't.

French one

A young man living a happy life among a accepting environnement despite his elocution difficulties enters a relationship with a ableist woman wanting to fix him.

Local man claims forgotten civilisation full of riches underneath the ocean, and earns the attention of a wealthy patron that organises an expedition into the depths.

Proceeds to go native and coup de tat the local monarchy, before killing a majority of the expedition and bribing the rest into remaining silent.

Explain a movie series badly:

A young boy gets abducted by a cult, to train him as a soldier. As an adult he tries to visit his mother, but she's already killed, so he massacres the aliens who did this. He falls in love with a royalty, only for the cult to forbid this relationship. A fascist traitor of the cult cuts off one of his hands, gets a mechanical one and marries the royalty woman.

Few years later, the man kills the fascist traitor. He gets a vision that tells him his wife will die of childbirth and the cult denies him a leadership position, so he joins the fascist leader behind the fascist traitor to try to save her, only to kill her instead (though the twins survive), after which his master in the cult amputates all his limbs and leaves him burning in hot magma. He gets saved by the fascists, builds out a massive fascist empire in the galaxy.

Is the OP describing Where The Wild Things Are? 🤔

A woman offers a lost boy some delicious sweets, but all she gets in return is the boy and his siblings consulting with a cat to murder her. After she's dead, all 4 siblings accidentally come out of the closet.