Families can be dangerous...

Address, with courage and kindness, the matters that directly pertain to you. The price of peacekeeping (appeasing others) is a far greater one than you will pay for peacemaking (allowing and facilitating necessary conflict).

But, tackle only what directly pertains to you. If you mess with relationships that you are not part of (where you are not one of the parties in the relationship) you will pay a price you might not want to afford. Families can be very dangerous places.