Let's be honest here. How would you feel if public schools were to post passages from the Koran? Or how about a wall devoted to Buddhist teachings? Wouldn't you view that as the government foisting religious views from another religion upon you, who did not identify as a Muslim, or a Buddhist?
Then, following the golden rule that Jesus taught about doing unto others as you would have them do unto you, do you think it's fair to post Christian religious teachings on the walls of public schools for those who are not Christians, such as little Buddhist children, or atheist children? Where is fairness here? Wouldn't it be best to just exclude all of them? I don't know how that can be answered any other way.
Again, asking you to be honest here, how would you feel if your local police force organized a prayer vigil, where they all pulled out their prayer mats, faced Mecca, and offered prayers to Allah?
Would you be okay with that? I fully suspect your answer would be no. Is it wrong for others to then not want government funded institutions, paid for with their own tax dollars, to set up Christian-based prayer vigils, when they are not part of that religion or believe in its views?
"Do unto others as you would have them do unto you," means you have to put yourself in their shoes, and not just look at it from what you see as true only.
Again, how would you feel if those prayers were to Allah, or to the Buddha, or even to Lucifer if they were of that belief system?
It seems you are only offended if someone says they are uncomfortable with your religion, while you would in a heartbeat not accept it if it were from another religion that wasn't yours in that same situation, being funded by your tax dollars and representing that institutions values in a religious way.
Is that fair to atheists? Is that fair to Buddhists? Is that fair to Muslims? Is it only fair, when it's fair to Christians?
I see it as the truth of fairness to all in a pluralist society. Do you wish to force Christianity down the throats of others using the powers of government institutions ? How does that honestly reflect Christian values, I ask?