Is Mad a Thing?

I’m curious how many people think that the adoptee is mad at their birth parents. I can’t imagine ever being mad at them. I was disappointed with the second rejection but never mad. I was confused as to why I was to stop wanting to have acknowledgement from my Aunts, Uncles, Brothers and Sisters, but not mad...I was sad that I wasn’t good enough, but not mad. I can honestly say that I know of no adoptee that is mad at their birth family. We don’t have any rights, we lost our rights to feelings when we were placed into a strangers home.