You are the light in their darkness. They do not see it yet. it is your job to tell them.

You can only tell them if they are listening.

They can't listen to you because cannot hear you (like you said, brainwashed).

You need to break through that brainwashing. The only way to do that is by treating them will complete respect. Thanking them for everything they give you. Offering to help in any way possible. stepping in an helping without being asked. Let them know that they are important to you. Learn to forgive because they are still dealing with you and any past issues.

In other words you have to be willing to change yourself before you can hope to change someone else.

You do that and they WILL notice. This is not an easy fix but it is the way forward. This will change their perception of you because it has already changed you.

From that place of strength (ability to touch their hearts) you will be able to start sharing what you have found in your life.

I know that is a lot. I can tell you this, It will change your life. You will become a much better person. You will become a much happier person.

If you don't know already that is part of what the gospel is. Learning to love others as you love yourself.