can't believe how they really feel

Today I had to witness best friend of mine tell their child that it is a disgrace and disgusting to be bisexual. I felt so heartbroken so hurt that you could say that to their own child knowing what I am a bisexual woman and for that it's really clear that even though people will say one thing they mean the other truly and it hurts that I have to know walk away from one of my closest friends in order to keep what I believe strong and how about that child. I can still hear that little boy crying and I can feel his pain and remind me of how I felt when I came out when I was a child no child teenager adult woman man transgender bisexual lesbian nobody should ever have to feel that way ever should not have to feel hurt disrespected or unwanted by their family.