In Deadly Premonition 2 you get your standard incest plot with a side of transphobia since the brother in question here is actually a trans woman. The game came out in 2019 but feels like it was written in 2005 with how the character’s gender is handled
The game is just all over the place. Swery wrote an incestuous perverted trans murderer and constantly misgenders her but also has several scenes where Francis York Morgan chastises small town hicks for their transphobia 
Obviously Swery didn’t consult anyone while writing the game and it’s interesting no one in the localisation/translation team flagged these issues in the script either. Swery got predictably pilloried on Twitter when the game came out on Switch and they scrambled to patch the game to make the dialogue less offensive. Yes, the PC version you see here is the patched version of the game 
Aside from all the transphobia, there’s plenty of other iffy shit going on with the game’s writing. The main villain is building up to be a black guy and his monstrous, morbidly obese blonde wife which feels a bit weird with how many of the game’s black characters are written, like the black lady who starts every sentence with OH LAWD. There’s also a running theme of older male characters being in love with much younger female characters, the most extreme example being a 16-year-old girl dating an adult man that looks to be in his thirties which is NEVER REMARKED UPON and treated as completely normal. York also has a 10-year-old girl sidekick in this game and some of the shit he says to her just comes off as really fucking weird sometimes
Francis Discord Mod Morgan
I’m nearing the end of the game and it’s just shocking how bad Deadly Premonition 2 is compared to the original. The graphics and gameplay being absolute dogshit could be explained by the game having basically no budget but how the fuck is the writing so awful when that was the glue holding Swery’s previous games together
I don’t really know how to analyze this phenomenon. Somehow I’ve ran into a lot of people who were into it and people often share TMI with me idk why, maybe I’m like a human can opener, but one thing I’ve noticed is all of them have been insecure about it when I question them and they talked more about how it’s actually bad and problematic, they’re “Only into the fiction.” So it could be like a “Don’t thread on me!” type of thing maybe? If we had an Ancap president they’d very likely be accompanied by their family member instead of spouse.
The Interest isn’t then romance, not the kind you’d expect from a romantic relationship, but more like a rejection of norms and a thing on power dynamics. It’s also why I would guess a lot of them that happen end up being abusive relationships (from what I have been told I haven’t spend a lot of time researching this topic), even if you ignore the incestuous part. Anyways I’ve spent too many time talking to all sorts of people and this is my analysis from that.