Racemixing isn't exclusively about creating children. Sex even without procreation is a deeply spiritual act involving an exchange of energies. And, as one HP put in the past (I forgot which one), the different races have different spiritual "ancestral trees" (I think the HP used a different term, but the word "tree" was used) and these are not compatible with each other. While creating mixed children while fully being aware of the problems this causes is even worse than doing this ignorantly, having sexual relations sans the children is also problematic for both parties involved.
I don't know where she stands regarding Satanism and our ideals but you guys should talk about this when you are both informed enough about the topic, and not too late either.
