I agree with you completely however, the problem comes in with the "as long as all religions are given the same considerations" factor. In many cases this either doesn't happen since the majority religion rules in most cases, or it can't happen because of the enormous number of belief systems and the rites and rituals they all encompass. And when you try to combine those many and varied religous rituals and beliefs into one for "same consideration purposes" something may happen as insulting to many religions as my (trying to be humourous) depiction of a school's "all religions included" nativity scene in an earlier post. I personally think it can't be done in a way that isn't disrespectful to many people's beliefs. And because religious rites, symbols or historical depictions really serves no purpose in such areas like education or board meetings or chamber of commerce events, etc..., then it isn't needed in the govmint arena IMHO.
Edditted to add: Of course many government arenas do depict relious symbols and wording in the state seals, emblems, on their buildings, etc... The Calif state seal has the Godess of Wisdom - Minerva - on it as well as other things. I personally don't know where you we should draw the line on religion in govmint venues - or even if you should (I personally think you should). So I struggle with this myself.