Libertarianism is natural law enshrined in a political system and makes a presumption of inequality and that it is a product of nature and thus non discriminatory in any way humans can control.
Atheists must accept inequity as the product of nature and evolution.
Those of faith recognize inequity as the will of our creator, expressed in his creation.
Equality of opportunity is an idea the west has embraced, giving us the most freedom and prosperity mankind has ever known.
Those who seek equality of result, such as wealth distribution or state control of industry, are the clergy of a death cult dedicated to the false God of equality.
Marxists are social terrorists in a war against nature. Nature has a clear and simple solution for those who ignore its law, death.