Grandma's Filial Piety Overwhelmed My Mother

My mother died, on my grandmother's bedside. Three years ago, my grandmother was hospitalized for a cerebral infarction. After she was discharged from the hospital, four uncles made excuses and refused to pick her up. My mother couldn't bear it and took grandma home. I thought I could get through it no matter how hard it was if I gritted my teeth. But grandma pointed at my mother's nose and scolded me. Scolded her for being unfilial. Accused her of abusing the elderly. Scolding her that she is not as good as her son. Mom was tired and never woke up after falling asleep.