Molecular science level evidence (e.g. genetics) is not available. But there is plenty of clinical evidence, and this is the kind of evidence that clinical medicine is generally practiced on. Indeed, molecular level evidence is not available for many things, and many parts of medicine would not be available if that kind of evidence is required before patients can be treated!

Therefore, asking for evidence is not a trap. Pretending that clinical evidence is not enough and demanding molecular level evidence is a trap.