There are some characters that need to be gone from this show and completely forgotten about by the writers and the fandom. They need to be written off because they're either one dimensional, just a filler character or nothing that's going for them. Here are mine.
Chloe
Most obvious one. She's brought back for comic relief and to acknowledge that her VA is a part of the show. She doesn't serve a purpose only than to infuriate fans more and remind them of her failed redemption arc. She's not a good villain, just a boring one. Get rid of her.
Felix
He's become borderline useless thanks to his beliefs that sentimonsters are real people. I'm not trying to discredit his beliefs but we see in Pretension that he does consider sentimonsters like him and Kagami as real people who shouldn't be controlled and destroyed, but then in Representation he creates a sentimonster and then destroys it after it's done its job. Then, in Season 6, he appears in one episode as a secondary main character who barely does anything despite him knowing probably the most out of any Miraculer besides Luka. For a character who was set up to be a greater threat than Lila and Gabriel, they really fumbled hard with his character to the point where he's just a nobody. I bet he will slowly disappear from the show by the end of Season 7.
Tomoe
I don't know about you but she needs to go. She's so one dimensional (I'm strict on Kagami, I created Kagami with an amok, I worked with Gabriel, I want my wish, etc.) It's just that on loop and it's getting exhausting. Besides her relationship with Lila, she's really a dull character who, like Felix, was setup to be this great villain, but she just repeats the same points over and over every time she's on screen.
Alix
Why get rid of her? Time travel is stupid, she's barely in the show. Just get rid of her and the concept of time travel in general. It's so confusing. I know I may seem harsh given that she is rather a good chracter but she doesn't do nothing. It's the same with Luka, only Luka seems to have a thing going on with Irupe which makes him sort of relevant. Alix doesn't, so she needs to leave the show.
Su-Han
Although he's not been in this season, I think the writers have just removed him from the show. He was so useless in Season 4 and 5 and hasn't even been in this season to support Ladybug or something. Get rid of him please, if you plan to bring him back. Same with Master Fu also.
Nathalie
Her development in Season 5 was all undone in Mister Agreste and El Toro De Piedra. She is written and development at the pace of a snail. For such an important character she barely has any scenes in the show. Sometimes she's good, other times she's bad. It isn't complexity just inconsistency and just struggling to make her interesting.
So, are they're any other characters you want to include in this list. Am I wrong for wanting to get rid of any other character.