I'm just extrapolating from recent history. How far can we slide before it can't be reversed?
Btw, I should point out that the Psalms are not just "some people's religious beliefs". To call them that is to take sides in a religious war, and is ipso facto a religious position, that of secular humanism.
You won't get far playing on a field which the other side has marked so that only their touchdowns count.
No accident that Bill Clinton's excuse was always "you will find no evidence of laws broken". If if it legal, to the left, it is moral.
Those who believe purging the Ten Commandments from courthouses protects freedom are deluded.