Liberalism is an ideology with two main parts. First is political liberalism which focuses on individual freedoms, democracy, and human rights. Second is economic liberalism which centers around free markets, private property, and wealth accumulation. These two aspects form a contradiction. Political liberalism purports to support everyone’s freedom, while economic liberalism enshrines private property rights as sacred in laws and constitutions, effectively removing them from political debate.

Liberalism justifies the use of state violence to safeguard property rights, over supporting ordinary people, which contradicts the promises of fairness and equality. Private property is seen as a key part of individual freedom under liberalism, and this provides the foundational justification for the rich to keep their wealth while ignoring the needs of everyone else. The talks of promoting freedom and democracy is just a fig leaf to provide cover for justifying capitalist relations.

This is an excellent primer on the subject https://orgrad.wordpress.com/articles/liberalism-the-two-faced-tyranny-of-wealth/