Astro wrote:

Did he say which race should remain pure?

Still waiting for Komrade Charles LIU to answer.

The answer is in Master Li's Sydney lecture cited previousely.

http://www.falundafa.org/book/eng/xnjf1.htm

"The races in the world are not allowed to be mixed up."

"Jesus told people not to spread the teaching in the East. I have also
found no oriental people in Jesus' paradise."

Also, Master Li believes interracial children are result dharma-ending
degeneration:

"the races are mixed up and it has brought about an extraordinarily
serious problem."

"if one is not from his race or does not belong to his people,
[Jesus/Buddah] will not take care of him. This is the truth, and it is
not that I'm making up something here. What I am telling everyone are
heavenly secrets. All interracial children were born in the
Dharma-ending period. People are not to be blamed for it, because
everyone is drifting in the tide, and nobody knows the truth."