Can you tell me more about our first amendment rights...?

As far as the so called Seperation Clause, it does not exist and you are correct. Each time the ACLU wins one of their lawsuits another American has had their constitutional rights violated. The ACLU also gets paid a huge amount of money, your tax payer money, from the federal government. The first amendment was written so that neither the majority or the minority would be able to trump the other when it came to their religious rights. As written, everyone has a right to practice their religion where ever and when ever they wish. That includes on government property. No other person has a right to stop them, to do so would violate their constitutional rights to religious freedom. The people who do not believe or are not of a particualr faith have every right not to participate and to walk away or not listen. The constitution only guarantees that Congres will not make any law that actually creates a national religion and mandates the citizens to practice that religion only. The government is NOT forbidden from sponsoring religious celebrations and/or events or allowing the citizens to celebrate their religion on its properties, nor is it forbidden from promoting one faith over the other.