Is Evolution a science or a faith?

[Esquilax]

Problem here is that fruit flies have not shown any beneficial traits in the laboratory experiments.

This is the problem: you aren't listening to a word anyone else says to you.

Because I've linked you to Diane Dodd's fruit fly experiments in the past, where two groups of fruit flies experienced a speciation event and could no longer interbreed when they were separated; that this isn't a particularly beneficial trait isn't germane, as evolution doesn't concern itself with exclusively beneficial traits.

If it's benefits you're looking for, I've also directed you to flavobacteria experiments that have been done which showed, under laboratory conditions, to develop the ability to digest nylon, a material that did not exist before 1935, from an initial population without this ability. Beneficial trait, developed in a lab. Bam.

But then, you're not actually looking for information, are you? Because you're not even concerned with what anyone else is saying, really. You're just clinging to your presupposition, droning on like a lunatic about how little you understand evolution, and growing smugger and more condescending with every ball blasting refutation you remain staunchly ignorant of.