[tame_deuces]

If we assume that:

1. Humans never stop progressing technologically.
2. If life was randomly created, the process should be repeatable given sufficient technology.
3. At some point in time humans will know which level technology is required to replicate the creation of life.

Given these conditions, what would prove your point was that humans never managed to create abiogenesis when the sufficient level of tecnology was reached.

However, since you know very little in the way of knowing what technology would constitute the level where you 'should make it', you can't disprove it just because it has not happened yet.

Speculating in a 'what if we fail' scenario is also fairly dubious, but you would have to assume the assumptions for thought experiment was wrong. Either we never get sufficient technology, it isn't possible to re-create anymore or life is more/different than we thought it was.

But it is kinda like asking 'what is the result if we prove beyond doubt that no miracle could ever have happened'. It is just intellectual masturbation.