Take Whose Parents Care as an example. Is there a problem with this statement? Judging from the distribution of the main obligations to support the elderly, it is normal for a person's immediate children to support their parents. "Managing" your parents is a sign of filial piety and obligation. I think your mother-in-law is right.
But the problem is that now that your mother-in-law is ill, you think her mother-in-law was right at the beginning, so you don't want to take care of her mother-in-law, and then you want your sister to take care of her mother-in-law. This is possible. But the question is, if your mother is sick, will you take care of her? If you take care of yourself or pay for medical treatment yourself, do you take your own money or your husband's money? It makes sense to take your own money, but it's a bit inappropriate to take your husband's money.
Although you can manage your mother's illness according to your mother-in-law's words, the problem is that you have to manage it yourself, not with your husband's income. If you can do this, then go to your aunt. If you can't do this, you can also go to your aunt. But as a daughter-in-law, during the relationship with her husband, you have the obligation to help support, that is, you have the obligation to take care of your mother-in-law.
or vice versa, Dallas to the auditorium Although my mother-in-law said something heartless, you should know that you married her son, and it was your husband who spent your life with you, not your mother-in-law. Your mother-in-law is biased towards your husband. What's the problem? Unless you think you are an outsider, you have never integrated into this family. If so, I advise you to change your mind, unless you don't want to live with your current husband, or you want to quarrel.
The reason why I say this is to tell you a truth. You and your husband have formed a family, and you have to ask your husband's advice for many things before you can do anything. Besides, many things are not what you said. Although my mother-in-law said so, there are laws. You can go to your elder sister-in-law, but you can't stop your husband from being filial, and you also have the obligation to help support him. This is what you don't care about.
Besides, life is for yourself. Although my mother-in-law is hard to say, it won't cause you any substantial losses. You can refuse to take care of your mother-in-law, but you have to fulfill your obligations. You can't take the initiative to take care of your mother-in-law, and you can't stop your husband from taking care of her, but in any case, it's definitely no problem for you to go to your sister. Both family and husband-wife relationship need to be managed. Think for yourself. If you embarrass your husband because you are angry with your mother-in-law, your family will never have peace.