My mother in law is so bizarre. She always supports my husband even when it's obvious he's wrong and it makes me feel like the outsider in the family. It's very very frustrating and humiliating. What can I do?

Do you stay with your in laws? If yes, sometimes you have to give in and walk away. Since your mil always sides your husband despite him being the one at fault. There is nothing you can do. Just walk away and calm down... Debating and arguing won't let this matter go any where.