Just because it has similar themes doesn't make it a knockoff; there's a different storyline with similar elements. I get that the art looks a lot similar to others; they can't help it if they use similar production artists to adapt something.
If you don't like it, just don't read it. I'm so sick of seeing those comments about works being carbon copies of other works because they were inspired or had similar ideas about how they wanted to go about their own work. I've seen many scanlators give up on work because of the negative comments when the project gets better. Also seen production companies drop something for the same reason. -_-
Had to push through the first chunk of chapters for it to start getting decent; still something you'd want to turn your brain off when you read it. Had to legit walk away from it so many times to just cleanse the brain rot until it hit the 100s.