I just don't get how all religious symbols came to be viewed as oppressive......I don't get it. Just because a religious symbol is present, doesn't mean that anyone is saying that religion is better than all others. The majority of people, at the time, felt this best presented an appropriate memorial. Just because the world around the memorial has changed, doesn't mean what the symbol was meant for and whom it stood for has. That is what a memorial is for. A memory. Not to be changed and altered with the times around it. Next thing you know people will say that the crosses over graves in Arlington National Cemetery should be removed as well. It is government property after all.
The fact of the matter is, the majority of people in this country still subscribe to some sort of Christian religion or belief system and used to be even more predominantly Christian. That means you're going to find a few memorials and landmarks that represent that. Should we change the history of our country just to appease to people today or should we remember that time period in our country's history for what it was, a more Christian time? Shouldn't we remember future moments of our country for what they are going to be? A more progressive and neutral time? I see no issue with that. The automatic belief that any religion presenting a symbol of their beliefs as oppressive and offensive to everyone else is paranoid and delusional IMO.