Europeans have shown that colonies can turn into functioning and vibrant countries. Liberia failed because there was not enough support. Numerous attempts to colonize America failed because the cacs actually succeeded in colonizing it. Just because Liberia failed doesn't mean all black colonies will or would fail.
It appears that the only way to advance as a people and nation in this world is to steal and kill and win. Two wrongs might not make right, but they make victory and justice. The smartest peoples in the world, the Jews, have figured this out. You should too.