Even though I am not definitly a creationist it is a matter of fact that even the simplest organism capable of reproducing itself is far away to complex to assume that it was the result of the mere chance

Evolution by itsself is deterministic but such basic organism is a necessary starting point
This is still a mistery
I am confident that sooner or later science will find an explanation but it is just an emotional issue same as the faith in God



As someone else said this is a popular but false creationist claim
The trick is to assume that the flagellum has been designed from the very beginning as a...flagellum
Maybe it was just a simple and even useless protuberance
The organism evolved thanks to other usefull features but since it was fitted also with this protuberance also the protuberance has been transmitted to his sons
Or maybe it was of some use , for example , as a sort of "anchor" or as a " radiator" to cool down the body
Some hundred years later , by chance, this protuberance started moving and it turned into a much more useful locomotion tool