Introduction
One of the tactics used in seeking to displace Christianity is by making the alternative view seem to be neutral in the face of a "partisan" religion. Basically, the argument is that because the First Amendment forbids "establishment of religion," and Christianity is a religion, the First Amendment forbids the establishment of Christianity.
The problem is, the establishment of religion refers to the making a religion the official religion of the nation. In historical precedent, a state religion involved official sanction of one religion over another. It had the rights while any other religions were restricted in some way.
This understanding has been perverted into the sense that the practice of religion cannot be accepted on property belonging to government whether national, state or local... even to the extent that a memorial to the war dead which bears a religious symbol can be ordered torn down decades later.
The Contradictory Positions
Paradoxically, one cannot place a cross on public property as part of the freedom of religion, but one can burn a cross on public property as part of the freedom of speech (if not done to intimidate)... even though both freedom of religion and freedom of speech are part of the First Amendment.
This leaves us with a contradiction: One cannot have a display of religion on public property because it might offend those who do not share those religious beliefs. So why can people air political beliefs on public property without concern over whether it offends those who do not share that belief?
If allowing religious symbols or activity on public property means the establishment or endorsement of religion, then it follows that allowing political activity on public property is the government's endorsement of a political faction. Any political demonstration on the Washington Mall therefore imposes political views.
One can either argue that both religious and political symbols/activity can be allowed on public property or neither can, but one can't argue for one without the other without being hypocritical.
Oh wait... the First Amendment also informs us that we have the "the right of the people peaceably to assemble," so one can't argue neither is allowable.
The Real Issue
The real issue here is the modern movement to restrict religion is not based on neutrality, but on restricting something that stands in opposition to an ideological position. It is an imposition of a position favored by political and social elites and the suppression of those that disagree.
In other words, what we have is the "prohibiting the free exercise" of religion in order to benefit a group that dislikes the calling of sin a sin.
When we see judges determine that so-called "gay marriage" is a human right against the widely recognized knowledge that marriage is between one man and one woman, we see a member of the elite imposing their views on others. When we see government officials refusing to defend just laws they disagree with, they are imposing their views on others.
The Reverse is Not True
Now some try to argue that Christianity is the one that imposes its view on others. This is false. Christianity is no ideology trying to force its way by courts and executive orders into a system of beliefs held across time and geography. Christian morality has long been recognized as being true by people of different lands and eras, and the laws which derive from Christian morality come from the conviction that laws must be in accordance with the truth.
This is important to remember: Christianity did not force itself on an unwilling public by unscrupulous judges and partisan laws. It is now under attack because malcontents dislike being opposed in their desire for their favorite vices.
Conclusion
Despite the media and political propaganda to label Christian morality as intolerant and calling for a "neutral" view, we need to recognize that the views expressed as an alternative are not neutral. They are adversarial to Christianity, thinking of it as a bad thing that needs to be contained or destroyed.
The secular rejection of Christianity is not a movement based on justice, but on partisanship. Once we recognize this we can see their actions for the injustices they are.