don't think there's a single main character bad parent manga/hwa out there cause most of the writers are either girl authors that like guys fucking or guys that desire the ability to birth a kid
..good luck finding one though, there will always be a messed up in the head artist out there who's willing to draw what you're looking for
bet. tbf I'm thinking of one bl story where the ml's dad was a pos and he had a rude awakening from ml protecting his younger sibling. being confronted by neighbors he decided to try to reform and was separated from the family while in counseling...
rambling/though now that I think about it, I've read about a mc, an older stepbrother who inherited the family business and a system had him act like a pos so that the mc would overtake the family business per 'the plot.'
I don't really like fictional children because they're often props used to show off maternal or paternal sides to the mc, and most times they lack any personality- masochistic as it is to write a 'bad father' there are criminals, conmen, etc. out there getting pregnant, I don't see why having a child will ultimately change them(?)/just thinking really
reading omegaverse/abo and realized. regardless of their own upbringing I haven't read an example where main character male presenting is a 'bad parent,' for the male lead, I've read that a handful of times. and with the father of either the ml/mc almost exclusively only repped. is there any titles otherwise?