"In God We Trust" clearly has no place on government buildings or coin. That it is the national motto, replacing the more relevant and unifying e pluribus unum, is itself a violation of Church-State separation and gives favor to a single, monotheistic superstition. There are other superstitions held by American citizens that are marginalized which is unfair. Americans have the right to pursue religious beliefs without government favor, regardless of what their superstitions are (or aren't). What if someone believes in multiple gods? Or a god that isn't to be named? Or a blue elephant? These propositions are equally valid and just as likely as that of any Judeo-Christian cult.
Moreover, the Republican from California pushing for this should be ashamed and embarrassed given the cost. $100,000 could do a lot of charity. Feed a lot of kids. Pay for a lot of immunizations and health care in community. But he'd rather purchase four words.
The suit filled by the FFRF is patriotic and righteous. Let's hope the case is once again review by the Supreme Court and the motto itself found unconstitutional.