At this point can we not just state plainly, the whole denial argument is predicated on politics?
As to which of the two hypotheses is more predicated on politics, I think there are more generally left-leaning people who are swayed by the lab leak (circumstantial) evidence, than there are right-leaning people who are swayed by the zoonotic origin (circumstantial) evidence. This perception may be mistaken, but assuming I’m correct, this would suggest that the zoonotic origin hypothesis is more likely to be predicated on politics.
Edit: typo