Son compartido

AITAH for telling my adopted parents I'm disappointed to find out my adopted father is my biological father? Growing up, I (16f) was told a story. I was this precious baby who was born in China and I was adopted by a lovely white American family. That they loved me and chose me the moment they saw me. That love is what mattered, not blood. That it didn't matter that I didn't look like them, my race didn't matter, I was their daughter because of love. Turns outs, my mom (41f) and dad (41m) said