I see so many people saying that this is bad writing but so far the only flaw I see is the...

I see so many people saying that this is bad writing but so far the only flaw I see is the cops choosing a high profile officer for an undercover case. Everything else is just MC doing his best to cope in a situation he can't win.
He can't quit the case because his dad is in jail and the cop in charge of his case is under Taegun's thumb.
How was he to prevent Taegun from coming back early? The bugging device was identical to his own, so there was no way for him to know he'd been bugged as well if they switched devices and kept the total amount of devices the same.
He opted to break Seohun's 1 ankle rather than cut off both feet (which seohun wouldve surely died from bc of blood loss or infection). This was done to prevent the underlings from gangraping Seohun, which Taegun only ordered them to do because MC didn't wanna cut off his feet.

Also this is (at least so far but I'm willing to bet) not a BL. It's a yaoi yes, but not BL. If we knew that in the end MC would fall for Taegun then yeah this would be a hella shit story, but I have a feeling this will take a Killing Stalking route, meant to explore a sense of self (mc's statement that he can never be dirtied by Taegun bc there are no dirty victims) rather than emotional manipulation like there was in KS.

IRL i am not a fan of cops either, but I think the author was just trying to juxtapose the MC and ML and their positions in society. This cop identity is what MC clings to to maintain his sense of self while wading through all this shit, i dont think this is a pro cop story but instead an instance of symbolism being misread as pro cop. Clearly the system is flawed in this manhwa's world too, or else the mc wouldn't be in this situation because the corrupt system let his dad basically be taken hostage.