Uncle is so inhuman, what should I do?

In the past, my uncle was very kind to us. My grandfather's house (80M) was given to him, and his employer's house (100) was also given to him (with the consent of my parents). At that time, the big house had to be bought with money. Although my dad borrowed money, my dad lent him 60 thousand yuan (the old man saved it all his life), saying that you lived in two big houses and we lived in a small one, just two people. Because I am in the field, the conditions are very good, and my parents just want my uncle to have a better life. My dad means 60,000 yuan to buy this house (30M). In our place, the house can't even sell for 30 thousand yuan. Besides, my grandfather's name is not his (he has been dead for years 10). Because of the good relationship, I didn't write an iou. As a result, the house is moving now. He told the old man that no one wanted the house. He has two daughters. I want to kick my parents out! ! At that time, my dad bought a house after taking out a loan. He bought a car and a computer, but he didn't pay back the money. He also drove my grandmother to my house. My father is in hospital, and my mother can't take care of it. He said he would lose his temper in two days. Now he knows that the house is valuable after moving, and he also bought a TV for my grandmother, saying that it is absolutely good for her and will support her to death. My parents are so kind to him that he wants to kick them out! It's so rude that my father is too angry to get out of bed. My mother has cerebral thrombosis and talks nonsense every day. He ruined my family! ! ! Grandma may not dare to say anything. I heard from my dad that he was here for an inspection. I knew when he was 20 years old that he had been pretending for so many years that everyone regarded him as a treasure. He has never suffered since he was a child, and everyone dotes on him. My mother is more distressed by this younger brother and gives him everything good. Now, I'm turning my back on people. If anything happens to my parents, I won't let him go no matter how much it costs! ! ! ! My poor parents don't like it. It's much better now. He made them both sick. What should I do? Can he really get the house? Does he really need to pay back the money? My parents are so angry with him? My father has diabetes and complications. It's the kidney. The doctor said that he could live for seven or eight years at most, and my mother had fallen ill. But nobody helped me. I don't know what to say or do when I go back. The next three rooms are his, and I, my parents and grandma sleep in the street. That's a joke. He has been pretending for more than 20 years, so let him succeed. Is there justice in China?