Instead, they lay bare our subjective interests and celebrate them. Altogether, it's quite a party. Liberalism is a better conceived theory than multi-culturalism. A radical redistribution of wealth is unlikely and would probably cause more harm than good. Therefore, the best hope for alleviating real poverty is economic growth.
Economic growth helps everyone, and hurts no one.
Inevitably, it helps those most able to help themselves first, but the accrued benefits will eventually trickle down, and yes, it is occasionally okay for the government to expedite this process. There have been and are many legitimate criticisms of this model, but there are also a few legitimate successes. Even though there may be many real-world examples of liberal failures, there are enough successes to keep a lot of people happy with liberal theory. Multi-culturalism is a much vaguer theory than liberalism. Multi-culturalism, like liberalism, is a pleasing theory, in which everyone has a chance to get out and strut their stuff for the American audience, be recognized, and ultimately, fulfilled.