What if christianity never existed ?

[vorlon13]

well . . .

there is a shared collective belief in Christ, but can we say that 'Christianity' actually exists ??

For instance, if I look in my garage and see my car there, I know my car is there and that I have a car, and my car exists.

If I instead have a windowless locked garage in my backyard, and a family tradition that states grandpa's 1933 Duesenberg is in there, do I really have an actual car??

Is it possible grandpa never owned one ?

Or if it there it's totaled ?

Or grandpa sold it for beer money in 1937 and didn't tell grandma ?

See where I'm at here?? The christians just have their belief, I cannot touch taste or smell it, it is presented not as a material fact but instead as something requiring a state of mind to substitute for reality.