What do you think of me blocking 2 people on facebook? Both of them are family.
That depends. Why do you guys have each other blocked?
They have to be blocked for me to function in a normal way.
If it effects your life badly having them in it, it is okay to remove them from your life. You don't need toxic family members in your life.
I can live without them. It's not that bad.
Give it sometime and then see if you can unblock them later if your relationship has improved. It is not great to exclude your family from your life, since family is there for each other.