> Why bother to believe in a virgin birth?
Because "virgin birth" is an established fact in the animal kingdom. It's called "parthenogenesis."
> Why bother to claim you are a Christian if you don't believe in the miracle of Creation?
I would suspect becuase being a Christian involves things other than believing vague creation myths as literal fact.
> Why limit Him on Creation
That's what a great many Christian evolutionists ask Christian creationists.
LOL:
"I would suspect becuase being a Christian involves things other than believing vague creation myths as literal fact."
LOL! Creation is no "myth" and it is not "vague". It's rather clear that He created in six twenty four hour days and rested on the seventh. The Hebrew confirms this. Believe it or not.
> Why limit Him on Creation
"That's what a great many Christian evolutionists ask Christian creationists. "
Psst - there is no such thing as a "Christian evolutionist". Either you believe what He says in the Bible or you do not. The Bible does not support evolution in any manner.