The importance of morality is that people behave themselves even if nobody's watching. There are not enough cops and laws to replace personal morality as a means to produce a civilized society. Indeed, the police and criminal justice system are the last desperate line of defense for a civilized society. Unfortunately, too many of us see police, laws and the criminal justice system as society's first line of defense. For this very reason peoples of other faiths have been afforded asylum, prosperity, and freedom of worship.
Liberals nowadays reason using a far different logic.
In their syllogism, church and state must be separate. The state must own or control everything. Therefore, the church must retreat to near nothingness. This is not the America Thomas Jefferson wanted. It can only exist until the voters discover that they can vote themselves largesse from the public treasury.