All the parts have shitty dads.
PB: Dario is shit, George is dumb
BT: George II is dead, Zeppeli's dad abandoned his kid and then traumatized him, Lisa Lisa's adoptive dad willlingly became a vampire
SC: Where the hell is Jotaro's dad, his wife's dying
DiU: Joseph is a filthy cheater, Okayasu's dad worked for a vampire before mutating into a monster, Kira is a serial killer who murders and impersonates a dad
VA: Giorno's evil villain real dad and abusive stepdad, Diavolo trying to off his daughter.
SO: Jotaro sucks at being a dad
SBR: Johnny's dad is fucking awful, Gyro's dad is tough, Dario is still shit
JJL: Jobin is quite possibly the main villain
I'll be damned.