No it should not. Only if you could prove that it was somehow giving preferential treatment to muslims. Words on a wall do no such thing. Now if it said, "All ye who enter here should be muslim or they will not be judged fairly under our law." Then it would need to be taken down. Then the government would be establishing that muslims will get preferential treatment.

In terms of the commandments, you cannot prove that having them there establishes preferential treatment for those that believe in the judeo-christian religion. You cannot prove that buddhists or muslims will be treated any less fairly.

Regardless of what all these so called scholars think, this is what the founding fathers meant when they wrote that ammendment. That being a certain religion would not get you treated more fairly than another. Its not all that complicated.