It is liberalism (classical liberalism, not what is understood in the USA) because the mentality of these public policies is born from liberal minds, which would not sacrifice the principles that support the economy for rhetoric of social results.
The difference is in the conception of human rights. If they imply that someone else has to work to produce them, they are not true rights, if not indirectly excuses for a dictatorship.
The true rights are those that a third individual does not have to work to produce them, for example, the right to life is that another person does not kill you, if you fall ill and someone else has to help you, it is not a right, it is the result of solidarity that we understand should happen naturally.
So healthcare is not a right, it is a collectivized privilege. Public security is indeed a right. Taking life is a violation of rights. Causing illnesses on purpose is a violation of rights. Not helping a sick person is not a violation of rights, it is a lack of solidarity, or a defect in the social order.