Do you have to be a Christian to be a conservative?
You may also need to ask for the definition of Christian. I've seen many, many posts stating one or more of the following...the Pope is not a Christian, Catholics are not Christians, anyone who doesn't interpret the Bible literally is not a Christian, many Church of England clergy are not only not Christians but are atheists, and the ever popular, if you 'believe' in evolution you are not only not a Christian you are an atheist. You get the idea
What is it that you wish to conserve?
In this country, the term has always meant preserving the freedom and rights that have accrued to us as a nation founded on the gospel of Jesus Christ. That is the source of all that we hold dear, thus we work to conserve it, and protect it. What else is there?