Liberalism as a practical model and liberalism as an ideology are not necessarily the same.

Letting the free market loose will absolutely result in a state, as Private Property cannot exist without a state, and as such larger Capitalists will build up a state to protect their interests.

Even if you had a limited state with a strong constitution initially, the Capitalists will absolutely abuse what power they can to build up a stronger state.

If by putting liberal policies into action results in illiberal consequences, then it's fair to call them consequences of liberalism.