Though it would seem that proving Christianity, and along with it the first and second commandments, would close the book on paganism all together, such an attitude is no where near existing in main-stream, modern culture.
Given that paganism is having its rebirth in a modern era, its heavily influenced by modern values such as individuality and the do-what-works-for-you attitude. Thanks to these prevailing winds, its based almost entirely on the tastes of the individual and their desire to have spiritual fulfillment however they want. Considering how much of it depends on feeling rather than evidence, how can you prove it wrong?
So ultimately, is there any way of dealing with such a multi-headed creature?