Don't getme wrong, I don't necassrily agree. However the US is edging into a theocracy at this point, which is why these fights have started brewing.
The first amendement stipulates seperation of church in state, thatthe State cannot show preferential treatment to one religion or another. A cross is an explicitly Christian symbol, which is where their case is coming from.
I don't like the idea that the majority gets to decide on the minority, personally. It's to close to "everyone else was doing it."
Some of the worlds darkest moments happen due to this reason, and often to the "minorities."
And again, isn't the idea that the majority gets to decide on the minority the idea on which Democracy is based?