I definitely don't want to upset you, but I have never understood not wanting to adopt. I absolutely don't want to make you uncomfortable or put pressure on you but I wonder what your reasons for avoiding adoption are. (Please don't think I'm asking you to state them here, I just say it to encourage you to possibly revisit the idea).
I have taken care of so many adopted children. Some have been adopted from other countries, some from the same township and everything in between. Some have been the same race as the parents, some have not. The families are just like any other family. They experience love, pride, joy, heartache, fear, and everything else like any other family. The only difference I've noticed is in the few families who try to keep it a secret. Those who are matter-of-fact usually find adoption is a complete non-issue.
One of my favorite stories is a friend of mine who is white and married to a korean. They couldn't concieve so they arranged to adopt a korean baby. Then, of course she immediately became pregnant. The baby physically takes after her father. So when she would be out taking care of two little "asian" babies less than 9 months apart people would ask her if she is the babysitter! It drove her nuts (in a funny way, not a bad way)
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