I'm not even mad at the villains in these types of stories anymore. because this SAME EXACT SCENARIO has been overplayed by so many other stories where the mc is a part of a hero party and is kicked off for being "useless" but they're somehow saved and are able to escape and exact their revenge. These types of stories have gotten my so disconnected from their world that I just look at the author with dissapointment. People who want some examples would be
"The Sword of Princess Gluttony", "Welcome to Cheap Restaurant of Outcast!", "My Twin Sister Was Taken as a Miko and I Was Thrown Away but I'm Probably the Miko", "False Hero Has No Place in This World", "Adventurers Who Don't Believe in Humanity Will Save the World", "The Sole Monster Tamer in the World, ~I was Mistaken as the Demon King When I Changed My Job~", "The Hero Who Seeks Revenge Shall Exterminate With Darkness", "Nankoufuraku no Maoujou e Youkoso", "The King of Cave Will Live a Paradise Life", "The Labyrinth Raids of the Ultimate Tank ~The Tank Possessing a Rare 9,999 Endurance Skill was Expelled from the Hero Party~", "Chillin Different World Life Of The EX-Brave Candidate Was Cheat From Lv2", "Nidome no Yuusha", " I Was Kicked out of the Hero’s Party Because I Wasn’t a True Companion so I Decided to Have a Slow Life at the Frontier".
Note that some of these stories are pretty fucking good and im not saying that all of these are bad stories. but I'm just using them as examples on how ALL of these stories start off with the MC being betrayed by the ones they trust with the main villains being so shitty created with them being the bland "bad man betray hero becuz bad man is bad man".
I know for a fact that I'm missing a TON of other stories and just forgot about them, like the one where the mc is a wizard who's kicked out of his party because his fire spell didn't kill a giant tree ent but in reality the tree ent was just weak to electricity and he somehow gets a cheat tome from out of nowhere which tells him stats of everything. Or the other one has the mc get kicked from his classmates into a rivene and somehow lives and uses the "absorb skill" on a dead dinosaur and basically becomes as strong as god at that point. I'm just saying that the fact that I can list all of those other stories with the exact same start says something about the creativity of a lot of authors.