How can I convince my daughter to date a white man?

So, my daughter claims she's a lesbian and is dating an Asian woman, and her father and I don't approve of this relationship at all. We're very proud of our Norwegian and Scottish heritage and have always wanted her to continue our bloodline, but that's not possible if she thinks she's in love with another female and add that's she's a completely different race.

How can I convince my daughter to date a white man?
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