>>1214037Just tell her that it's incomprehensible to you that she would abandon her parents and families legacy by not passing it on to a new generation.
Also, that there will always be that thorn in their relationship with an adopted kid that they would never be the real parents, and that the kid at any time could say "thanks but I want to return to my real parents, country and culture".
You would just need to watch what happened with a lot of the korean adoptees.
https://www.nytimes.com/2015/01/18/magazine/why-a-generation-of-adoptees-is-returning-to-south-korea.html 