Sekko-sama
This is Kawaguchi Hidetoshi. This is my humble answer to the question.
“Die” is... a little too much...
moral harassment...
Desire for control, obsession, dependency on children... I say “too much cuteness is a hundred times more hate,” but it is thought that there is a big relationship in tragedies in parent-child relationships due to distorted love and hate.
Depending on the distortion of parents' desire for control, obsession, and dependency, it is thought that it interferes with the child's growth, independence, and autonomy, and if there is something that does not interfere with one's own intentions even a little, they resist violently, harbor hostility, anger, and hatred, let alone love, and lead to taunts such as this one.
In such cases, children unconditionally acknowledge themselves as parents, and are naturally presumptuous with yes to any assertion or assertion, they are outraged and fiercely resisted, let alone come out of their own domain of control as parents, and I know that they will be crushed mentally and in severe cases physically with every means to stop them.
If it is something like the above, there is a possibility that it falls into the category of suspicion of “abuse,” as indicated by Mizuki Noborimasa. I think that if they even become depressed, they will still have no choice but to doubt it like that...
As for dealing with it, will they “endure it” as it is, or will they fight a “war of independence” from their parents...
Even if you endure it, it's about how long Sekko-sama's heart can endure. If it even becomes a mental illness such as depression, it becomes even more severe... but as long as they live together and meet face to face in various ways, there is nothing you can avoid...
Of course, even if you fight a “war of independence” based on your parents' desire for control, obsession, and dependency, if Saikko-sama is also dependent and attached to your parents in various ways, this battle will be extremely tough. Little by little, I think it will be easier to fight if you reduce your degree of dependency and attachment to your parents, and if you are in a state where you can live even if you leave without being dependent on your parents.
It's a difficult choice whether to endure an attack with military provisions or defeat them from the castle gate... but of course, I hope you can get them as one of the various reference opinions, not limited to these two.
Kawaguchi Hidetoshi Gassho