You all seem to forget that bloodline doesn't end with Nana. What is to stop clan from continuing the practice afterwards? Also, you're the one who is weirdly dismissive of all the people who were sacrificed for it in the past, will be in the future, and also, may i remind, the kind of curse that requires a gruesome process like that is not used to make someone stub their toe or slip on a banana peel. That's the kind of curse that is used to eradicate families. What about future and past victims of the curse?
If anything, you're the one who are shrugging off a lot of past and future deaths simple because... "but maybe not all people in the clan are bad". Honestly, i'm kind of done with this discussion. If people want to just reject the reality of how these kinds of cults operate, and stick to their "lalala, nothing bad is ever going to happen again, because one woman pinky-promised to not engage in a ritual practised by her sect for generations" delusion - suit yourselves.
Brother man, your analogy is almost like those on the internet saying "H2O is an atom away from being H2O2" like dawg are you okay? You're saying it like everyone is clowning on you which is not true, lets break it down as much as possible so everyone is on the same page.
The Ebisumori bloodline will never end, their
curse practice will and are on the verse of ending however by the time Mutsu pass away, even Nana barely know about it as much as Mutsu. What past and future "victim"? They're already gone bro, it's pretty much over and dealt with by the time Kaya was born, Mirai is the only one who's bringing it back.
And you're telling me it's justified for her to nuke the whole clan, not just her mom and sister, even the branches who don't even know a hair about it at this point in time thanks to Mutsu, and killing both of her kids with one of them still in her belly, plus hundreds of other innocent kids who are born in the branch families??? I'm not even talking about how she's about to traumatize her husband if she succeed.
And all of it stemming from her getting bullied? Brother her childhood wasn't even THAT bad, everyone in the family loves her, she got bullied only when she got to public school after a good while, and guess what? Mutsu was still looking out for her up until she left the house, but Mirai never acknowledge it, and guess what? After leaving the house, she got a family, her husband loves her! Kaya loves her! And she's actively destroying the place she belongs, by blasting both the uninvolved and her loved one for that so call "revenge" and you're telling me this shit is okay?!
Could have just said "Oh mb g I didn't think it through, didn't know it's that bad" and end it there, but no it seem like you're arguing just for the sake of it and you have to double down until you can't fight logic anymore and just settle down with "I'm kinda done with yall, those who don't agree with me mean they don't know any better" like damn can you go looking at the mirror for a minute??
I'm sounding very heated, so apology if you're feeling extremely offended, but then again you should read what you typed before hitting enter, or better yet reread the manga then come back, I don't want to associate you with some of those Twitter users that refuse to think if I could, you're literally looking at Mirai through rose-tinted lens and making the consequence of her action like it's someone else's problem.