According to Alexis de Tocqueville, why was egalitarianism a key to the United States' success as a constitutional republic

According to Tocqueville egalitarianism was key to the success of the United States as a constitutional republic in that, when citizens that are equal fight for their freedom and independence, against power, their only chance is for them to combine forces. In this sense he saw democracy as a perfect equilibrium between freedom and equality.