"He did not make any statement about how the first living creatures appeared'
Huh?
Then you need to tell that to a few hundred science teachers.
Darwin never discussed the Origin of Life in a single published book or article in his life.
He briefly speculated on it in a personal letter once. That's it.
""He did not make any statement about how the first living creatures appeared'
Huh?
Then you need to tell that to a few hundred science teachers."