It seems we've been talking past each other, so as a last ditch effort to reconcile our perspectives - we are in agreement that there is no definitive evidence that vaccines are the sole origin of the current variants. In fact it's likely that neutral genetic drift was the origin.

What I provided evidence for, and what we also seem to agree on, is that "They provide a plausible mechanism by which future variants may be caused (or enhanced) by vaccines".

> But simply none have done so by now.

Time will tell - we just don't have the scientific evidence to support a conclusion either way on this yet.