I thought the same, but honestly seeing how the brother knows and how they wanna meet Sanho I'm not so sure that he got beaten 'cause he's gay, I think that maybe he might have told the a little bit of the dumb shit he done to explain why this realisation is a problem and since they got used to Sanho in the past 10 years the dad got mad. Might totally be wrong obv and if I am rip tak (even tho he an asshole and I ain't so mad about him getting hit) but I saw some other comments sharing this theory so will just have to wait :cccc
“I said, I miss you…Lee Sanho.” Okay, who did that to Tak face?! We gonna have problems. Like some serious problems. Only Lee Sanho can beat up Tak for the stuff he put him through. Who would dare lay their hands on Tak?... (╬ ̄皿 ̄)凸