Below are two readers who fit that bill:
Sometimes I tell people that I would prefer to adopt because I was adopted, and they become defensive or threatened, like they think I am judging them for not wanting to adopt. A lot of people seem to think that an appropriate response is to say “oh, good for you, but I would worry that my kid wouldn’t be like me” or “that’s nice but I always worry that parents can never love their adopted children as much as they love their biological children.”
These kinds of statements are meant to make the speaker feel better about themselves for not wanting to adopt. But, not only are they based on faulty logic (just because you have a your own child, there’s no guarantee they’ll “be like you”), when people say these things, they don’t realize that these statements work because they make adoption, and by extension, adopted children, seem like a lesser option—the last resort if you can’t have children any other way.