Is Christianity a Culture?

I just started a World Civ class at WSU and my first assignment was to create a definition for the word "culture" and then apply my definition to something specific so I chose Christianity. Doing the assignment brought some thoughts to mind that weren't really appropriate for the paper so I thought I'd add them here...

Here's my definition of culture...

Culture includes a community's entire way of life. Iit is shared beliefs and actions. Culture is not my individual feelings and behaviors as separate from the whole but rather the thoughts and actions of the greater society or community. Culture is learned behaviors, symbols, beliefs, values, meanings and unspoken rules. It is affected by those in power and therefore any cultural study should ask the question: Who has the power to affect cultural change? or Who has the authority to make decisions that affect culture? Culture is not an abstract idea that is separate from the people within that culture. It is affected by the people and it affects the people. It is not static, but is always changing. Culture is how we live out our understanding of the world and this worldview is taught to us by parents or educators or others in our culture and often subconsciously learned through experience within the culture.

Now, by my definition I would mark Christianity as it's own culture or more specifically, in the U.S., a subculture. Here's why....

The Christian culture has not been static during any part of history. It is always being changed by the people within and outside the community. It is full of unspoken rules such as what type of clothing is acceptable and where you should be on a Sunday morning (or Saturday night as this culture continues to change). There are behaviors that to an onlooker would seem strange but to those within the culture seem completely normal. There are taboos and a set of beliefs that should (but don't always) affect behavior. The structure of power is affected by beliefs about the appropriate roles of men and women. There is often an unspoken rule that it is unacceptable to vote democrat. There is an entirely different language that can sound foreign to someone who is unfamiliar with the culture. Words that may be the same as those used in the dominant culture, hold varying meanings within this subculture. And like any culture, the Christian worldview is learned through experience within the culture and teaching from people who are a part of the culture.

Now I have to ask the question...

As a "culture", do we adhere simply to similar beliefs and ways of life such as attending church on a weekly basis, or do we allow our shared beliefs and values to truly affect our way of life as in the way we treat people, the effort we put into our work, the things we talk about, etc... Can we truly look at ourselves as a culture if culture is defined by a set of beliefs that affect behavior? Other than the frivolous things like attending church on Sundays, voting Republican, and using words like grace all the time, would others see us as living differently? As a people, are we simply an American subculture or do we live the culture of Jesus? We believe that Jesus brings hope to the hopeless but do our interactions with hurting people reveal that? We believe that Jesus spent time with sinners, but do we do that? We believe that in Christ, all things are possible, but do we live that way?

The frivolous things of our Christian culture are changing. People go to church on Saturday nights, they get tattoos, drink beer and vote Democrat. So when we deconstruct what we once thought was important to the Christian subculture, will the culture of Jesus be left or is it already gone?