Their goal is almost achieved, which is world domination. Their ideal population is represented by the UN's "brown man," no more blacks, no more yellow, red or white, just an amalgamation knowing no loyalty to a non-existant nation, living - or not - only to serve the jew. Books stating their aims exist but are in collections like the University of Texas were you cannot go unless you have special permission.
Even with the propaganda arm of MTV, race mixing to such an extent would take hundreds of years, and as with the case of Brazil, you still have divisions among coloreds where lighter blacks discriminate against darker blacks, or in South Africa where mulattoes have sought self-determination apart from the black majority.
But I still wonder what would serve them better. A monolithic brown race of people who had no 'united front' that could present opposition to their One Worldism? Or forcibly integrating groups and for the most part maintaining their differences, using the classic Marxist pincer technique of tension from 'above and below'?
I lean more towards the second case. Why else would they be funding La Raza, and endorsing their 'cosmic race' theories, or the Nation of Islam? Or something I saw recently on campus, 'Dragon Seed' (a Chinese racialist group)? Without such cleavages in society, they lose their pretext for control.