Why are most manhwa filled with revenge?

Ok before some rude comments come in please go away if you're gonna be rude because I genuinely wanna talk calmly or have no argument with anyone or see any arguments in the comments tysm

Why are most manhwas filled with revenge? I genuinely don't get it I was wondering why I never got tired of transmigrations,Isekai manhwas etc then I realized it's cuz it's not 'revenge' it doesn't start off with killing intent or 'I want someone dead because they hurt me badly intent' don't get me wrong the FLS have all the rights to want revenge and take revenge what I didn't like was that there's no fluff moments and it can barely make up for the angst and sad moments too like??

I don't mind it ,I really don't but what bothered me was it's just pure 'hatred' literally then it gets ridiculous at some point and there's no progress through the plot like the whole personality is " I want my family,husband etc dead" then that's it .. I've not seen any FL that planned what happens after that like the FL has no personality at all and even she has it revenge is her personality so I'm confuse very confuse in fact

I get that these guys all their lives had given their best to those who betrayed them and she wants to take revenge sure but like aside from that ,that's it

Another thing that confuses me is why is it that all MLS are forceful in manhwas like these like they're either really worse then the husband FL had in their previous life or just green flag usually they're worse or an ahole

It's so hard to find a good fluffy wholesome consented manhwa without Isekai etc if anyone has some give me some reccs I need it but yeah that's all my questions tysm 😭

Title for the photo above/below is :Childhood Friend Complex (Eunhi)