I've never seen someone directly saying he has the right to be a jerk because of xyz, but I've seen people countless times saying "you don't know what he went through" when other readers criticize Jaekyung for acting like an asshole. That, like it or not, is implying that whatever he went through makes it so that he's allowed to do as he pleases or at least, not be criticized because of it.
HOWEVER
Saying "this doesn't excuse his actions" has nothing to do with there being or there not being people excusing him, it has to do with how the narrative is doing something MANY authors do: trying to downplay all the bad things a MC did by showing things he went through in the past, make him look somewhat excusable, when he can only be forgiven with a proper apology and change. Most times when there's a flashback like this one, we won't be getting any sort of apology...
I'll be more than happy if I'm eventually proven wrong, but my hopes are very low.
where are the people who are “excusing” jaekyungs actions? everyone is saying “this doesnt excuse his actions!” but im wondering who said that in the first place?