I don't know what to do with this stepfather.

The most important thing is mutual respect, and how good it would be for a family to live a harmonious and happy life. This requires family members to understand and respect each other and never hurt each other. Since you have lived with your stepfather for more than 20 years, your stepfather has always been very kind to you. You should be kind to old people. You can't always complain about the shortcomings of old people. I believe that if you always care about your stepfather, he won't always do something special. Find the reason from yourself first. You have lived together for twenty years, and you both have a responsibility not to think about how to deal with him. Move out if you can't, or ignore him if you can't. But after all, he has raised you for twenty years and is your mother's companion. Bear with it and ignore him. Don't think about how to deal with your stepfather. Try to communicate with him. If you really can't communicate, you'd better accept the reality, learn to ignore him and take preventive measures yourself. After all, I have lived with you for more than 20 years. The most important thing is mutual respect, and how good it would be for a family to live a harmonious and happy life. This requires family members to understand and respect each other and never hurt each other. Since you have lived with your stepfather for more than 20 years, your stepfather has always been very kind to you. You should be kind to old people. You can't always complain about the shortcomings of old people. I believe that if you always care about your stepfather, he won't always do something special. Find the reason from yourself first. You have lived together for twenty years, and you both have a responsibility not to think about how to deal with him. Move out if you can't, or ignore him if you can't. But after all, he has raised you for twenty years and is your mother's companion. Bear with it and ignore him. Don't think about how to deal with your stepfather. Try to communicate with him. If you really can't communicate, you'd better accept the reality, learn to ignore him and take preventive measures yourself. After all, I have lived with you for more than 20 years. The most important thing is mutual respect, and how good it would be for a family to live a harmonious and happy life. This requires family members to understand and respect each other and never hurt each other. Since you have lived with your stepfather for more than 20 years, your stepfather has always been very kind to you. You should be kind to old people. You can't always complain about the shortcomings of old people. I believe that if you always care about your stepfather, he won't always do something special. Find the reason from yourself first. You have lived together for twenty years, and you both have a responsibility not to think about how to deal with him. Move out if you can't, or ignore him if you can't. But after all, he has raised you for twenty years and is your mother's companion. Bear with it and ignore him. Don't think about how to deal with your stepfather. Try to communicate with him. If you really can't communicate, you'd better accept the reality, learn to ignore him and take preventive measures yourself. After all, I have lived with you for more than 20 years.