On this very forum a person told me that Evolution does not depend upon origins. That is like saying that we can theorize about bridge construction without any regard to what kind of foundation it must rest upon.
I fully realize that some very smart people are busy trying to assemble a simple bacteria molecule by molecule. It will be a big challenge for one side or the other will come when either a totally synthetic bacteria comes alive by itself, or if it just cannot ever come alive despite every attempt to do so.
Evolutionists, like liberals, tend to ignore inconvenient facts and history.
It's more like saying we can theorize about bridge construction without knowing where the steel came from. Or that a pediatrician can know a lot about a child's health without knowing the details of his conception.