Dojin has always been that GUY. straight up garbage. I only read for Hyesung in the original run of the plot. Dojin gets away with a lot for most readers simply because he’s the seme, he’s drawn to be the more traditionally masculine type with all the privileges that come with it, and plain and simple Hyesung is the female projected standin character so he’s subject to your run of mill misogyny.
FR, also let's not forget how people both in the manhwas and reality blamed HYESUNG for his reactions, like he wasn't abused, neglected and abandoned as a child, wasn't graped and forced to have his grapists child, as if the one of the main reason they're together wasn't because they imprinted and he will die if he didn't get close
Yeah when he was experiencing his heat after recently turning into an omega, he wasn't in his right mind unlike dojin who was sober, and HYESUNG agreed to give birth cus dojin wanted that child, and let's be honest do you really think he could get an abortion with dojin interfering? No, so he just became a surrogate (sorta)
Bruther byul was NOT a product of rape. Later in the story when hyeseung was gonna leave thats a different story. When hyeseung found out he was pregnant dojin expressed he wanted him to keep the baby but at the end of the day it was hyeseungs choice. He decides to carry the baby and get money instead. Heesoo even offered to take him to the damn clinic he wanted the money more

Honestly, I blame Dojin. He's the reason this whole thing happened (he literally r*ped and baby trapped Hyesung). He let's his best friend, fans, and others constantly talk sh*t and villainize Hyesung. He's the one who has been secretly contacting and financing the grandmother this entire time. He's the one that introduced Byul to her and let Byul hear the 'grandmothers side of the story' BEFORE hyesung's. He didn't step in when Byul said this cr*p. Byul wouldn't have this distorted view of Hyesung, if Dojin didn't let people constantly villainize and disrespect Hyesung. He clearly agrees and resents Hyesung for not letting himself be baby trapped and running away. Because who would let people talk to and about his spouse like that? unless they hated them. A good father and husband wouldn't have left any room for misconceptions to occur and if they did would have cleared them up immediately.