No, I don't believe in darwins theory of evolution as I don't believe in theories, only facts. I'm agnostic; not just in religious matters, but in every aspect of scientific inquiry.
I'd like to point out that no one can literally see thier own brain either. It has to be assumed that one has a brain, too, based upon the empirical evidence of viewing other's brains(dead or alive) or assuming that x-rays, video feed, brain wave detectors, etc. are relaying undoctored results. It has to be deduced.
For all we know one of us could be the exception to the rule with our brain actually comprised of a special breed of living marshmallows, but just maybe everyone else has lied to you about it. Faith is a stab in dark, the great huge gaping dark that is our unknown universe.
To dismiss abiogenesis is not to discredit the theory of evolution necessarily either. Abiogenesis is just as much an unproven theory to me as evolution, however the Miller-Urey experiment of 1953 did establish "that natural processes
could produce the building blocks of life without requiring life to synthesize them in the first place." Given enough time & the correct conditions.
It is still, to my current knowledge, unknown as to the exact conditions present on the early forming earth approx. 4.6 billion years ago, but it's believed to be much different from how it is today. Though even if these conditions were not adequate enough to form life from abiogenesis during early earth then perhaps they were adequate enough on another planet somewhere else throughout the galaxies and ended up transferring these "buliding blocks of life" via a comet or intervention of an alien civilization. Both of which are of "earthly" origin and thus much more in accordance w/ the simplicity of occums razor as opposed to an immaterial god(s) or force(s). Besides, occums razor may seem tidy & logical, but is infact only a dogmatic rule of indefinite utilty.
The current theories concerning the origins of life are just that; theories. And will remain that way until someone get's off thier ass & verifies it reproducibly through scientific method.
[I'd love to throw-out a few insults to a few of you unreasonable tards, but I'm short on time. so maybe next time
]