I agree with some of this, but "classical" (if that's what you meant by "traditional"?) Liberalism most certainly allows for, and sometimes assumes, "duty and care" by "those who wield power." Classical Liberalism is not devoid of morality and tradition; often-times, though, primary thinkers/ shapers of it assumed moral/ traditional/ cultural norms and simply didn't see much necessity of prescribing it through government.
No. It absolutely does not. Liberalism establishes the Liberal State as an absolute establishment of the popular will. In traditional European Theology and Political theory, the State is not a "bottom up" phenomenon of the popular will. It is a "top down" phenomenon of God's ordered creation.
The United States, as a Liberal State, immediately proclaims its adherence to the core ethos of Liberalism in the opening preamble "We the people." An absurd notion, as if the people had anything to do with it. Every single member of the continental congress were landed aristocrats or wealthy merchants. They didn't revolt against their king for "the people". They revolted against their King because the King of England wouldn't give them patents of nobility (Southern Aristocrats) and trade rights (New England Merchants) respectively. The King of England also took things a step further and declared that the people of America were not Englishmen. They were subject peoples foreign to England. This was the final nail in the coffin of the first British Empire that united the common peasants of North America with the Aristocrats and caused the American revolution.
Lord North really should be pilloried more back in England for this fuck up. It was more his policies then George III. He managed to unite the Merchants, Landed gentry and Peasants in the 13 colonies against the crown. An amazing accomplishment of absolute incompetence.
The US however was the opening salvo and established the first Liberal State. There had been liberal revolts before, but the American Revolution was the first one to win. And its why the USA claims to be the worlds oldest democracy. Despite not actually being that.
And after it won, the US ultimately codified into law its sovereign will over the American people. No union of church and state being part of the 1st principle. And to this day every Americans clap like a seals about how this victory of freedom over tyranny is such a good thing.
Why DOES the US Government proscribe a State Religion? Its because a State Religion imposes external ideological and moral imperatives on the State itself. And a Liberal State cannot be bound by any imperatives but the immediate will and desire of "the people". Who are retarded. Which means the State has no guiding moral principles beyond careening from whatever desire the people have to whatever desire the people in charge can convince the people they have.
Liberal Thinkers have spent CENTURIES trying to figure out how to replace the Christian God in their liberal state. And they have failed. Failed in such utterly catastrophic ways that not only has their failure driven the Christian god from our lands, now the alien gods of Islam and Hinduism are being imposed on us by the "common humanity".
And people ask me why I am a monarchist.