Bullshit, I have no mark. Just because some weird people threw some water on my face when I could not consent doesn't mean a thing.
Oh, so they are weird? What makes them weird?
You do have the mark, spike. No matter what you say or you do, you cannot get rid of it.
Let's suppose some cult threw some Tang on your face when you were little and said "he forever will be a Fighter against the reptilian agenda!".
Would you now still be considered part of their cult?
Wait a minute. Are you familiar with the reptilian agenda?
No, my current status is one of the majority of people who don't follow Catholicism.
You were baptized, validly I presume, which makes you a de facto Catholic. You consider yourself a Christian, so I presume you hold some tenets of the Catholic faith even though you are lapsed.