In reality those barriers were insufficient, since Jews ultimately did take over. Today Jews dominate mass-media and elite universities in the United States, not because they are so much more capable than the others but because of this in-group preference that Molyneux observes in Muslims.
Does it really matter that Jews do this? You bet. Mass-media are the primary source of power in a society where the government is elected. Using their control of mass-media and consequent control of public opinion, Jews have manufactured consent for several completely unnecessary and disastrous foreign wars, along with racially suicidal domestic policies.
Since the Second World War, which was a great victory for Jewish propaganda, all prudent defensive measures against the encroachment of Jewish power have been abandoned in the Western World (because such measures are said to be Hitlerian). Now the White West is defenseless prey not only to Jews, who were relatively small in number, but to other non-White populations, inexhaustible in number, that Jewish propaganda told us that we must not exclude.
Only people of Northern-European ancestry have such an extreme concern for fairness and individual rights as to ignore totally their own group’s interests, or even to work to a great degree against those interests. Why? Because these tendencies were helpful for group-survival in a frozen and inhospitable climate with low population-density and little interaction with foreign peoples.
In today’s world these generous tendencies of our race must be checked and kept within healthy limits, not unconditionally encouraged. Masculine authority and the will to say no must become strong again.