Among the many faithful Christians encountered to date, I have never seen such beheading.
Did you see the resurrection?
Different set of standards maybe?
Did you see the "Big Bang"?
No, but there's a ton of evidence and scientific understanding and explanation to support that it happened, so strong in fact that it has scientific theory status. Resurrection - nil, nada, zip.
My standard uses facts, logic and truth. I have no need for faith especially where it contravenes the aforementioned qualities.