You obviously don't understand what the term "organic chemical" means, or the fact that many organic chemicals are found in nature, not produced by living things.
Theistic evolution simply says that God designed and created everything we see, living things through evolutionary processes.
>> “ or the fact that many organic chemicals are found in nature, not produced by living things.” <<
.
At this point, an unproven assertion, although many believe that methane may have occured inorganically. No proof of that has ever been presented.
“Theistic evolution” is simply nonsense from a double-minded person. God’s word states in over 100 places that all life reproduced after its own kind, thus no evolution. The discovery of the DNA code was the end of evolution babble from a scientific POV anyway. The DNA code specifically prevented evolution from spoiling God’s creation.