Why are Christians generally opposed to abortion?

[Dave RP]

There is opinion, and there is truth.

A baby does not become something else because you don't like
to hear it. That is science fact and truth. Just because he or she
is at a different stage in development doesn't make him or her
any less human, or less precious to the mother that wants a child.
A child killed in the womb is no less a dead child than one killed
at any point after birth.

Additionally I would say in the womb it is a feotus, on birth it is a baby, then it becomes a child, then a man/ woman. Fifteenth stages.