Definitely not. The doctrine of freedom from religion enforced by judicial edict mean the sensitivities of the atheist dictate to the rest of us. A cross must be purged from public space lest it damage an atheists delicate beliefs.
No. The cross isn't placed in a public place because to do so would be to state that the government puts Christianity over others which flies in the face of the First Amendment. It has nothing to do with atheism. It would have to do with the "delicate beliefs" of other religions. Having said that...
The Danbury letter, which prompted the policy of Jefferson's separation of church and state in accordance to the First Amendment had to do with two different Christian churches. One Christian church asked Jefferson as president to interfere with another Christian church and to use his office to help limit the voting power of the larger church that won at the ballot more than the Danbury church was able to (the Danbury church supported candidates and laws opposed by the numerically superior rival church). Jefferson declined by invoking the First Amendment and comparing it to a "separation of church and state".
So, how would you categorize that? They were both Christian churches that supported different candidates...whose cross gets to be in the public square while the other doesn't (hypothetical)? Both churches felt the other was wrong in their beliefs.
So whose "delicate beliefs" would be "damaged"?
And if one church, with one set of beliefs about God and Jesus wins over the other church and their views on God and Jesus...do they not get to dictate terms via government decree if Jefferson had done what was asked of him and his office in the Executive Branch?
Would the Danbury church dictate policy over other as the power of the government was on their side?
Would this not be in violation of the First Amendment?
Atheism doesn't prevent the cross from being in the public square as you put it: all other religions do. Even sects within each religion as I just pointed out. Atheism doesn't prevent a Christian from being a Christian, to go to church and to worship...where does atheism do that? It doesn't. And while you may not be able to have a cross in a public square...you can have it in your church, on your label, in your home...that's what the First Amendment does: it enables you to worship and it protects the others from having your beliefs dictate their lives.
SIDE NOTE: if not having a cross in a public square affects your ability to worship God and Jesus, might I suggest that your faith isn't as strong as you might think.