I agree that it is a mistake to use the symbols and “liturgical practices” of a religion to judge the religion (assuming there is nothing that is clearly immoral involved). As you say, Christianity has its sacred buildings, sacred books, sacred prayers, sacred rites. And pagan religions, and other monotheistic religions have their own versions of all of these things as well. The fact is, we are human, and there are only so many ways that humans can worship.
If this sounds like some sort of support of religious relativism or indifferentism, it isn’t. As a firmly-believing Catholic I would argue that the reason all human worship tends to have similar aspects is that God has made us to worship, and when we do not have the proper object of worship (God) in sight, we “transfer” this built-in need and desire to man-made objects (gods, etc). So Catholicism is not just another version of a human need to worship, but rather all other forms and objects of worship are substitutes for the true God, worshipped and understood through His true Church. This idea is reflected in G.K. Chesterton’s comment that “paganism was the largest thing in the world, and Christianity came along and it was larger still, and everything that has followed has been relatively small”. Paganism was humanity’s instinctive need and desire to worship before the object and form of worship was revealed. Judaism is the preparation for that revelation, and Christianity is the completion of that revelation.
reborn_pagan, I sense that we may have some interesting discussions on these topics, and I look forward to them. You appear to be a serious representative of a movement that we Catholics must address seriously. I have no doubt that the Catholic faith can do so.