I said assumption, not observation. Existence is not in question, that is a matter of observation, not assumption.
Beyond that, more or less. However, I still prefer an F&B solution and I'd prefer to leave aliens and interdimensional things out of the mix, at least until they are unavoidably necessary to address field observation.
Certain "camps" within the bigfoot world place their own arbitrary requirements, their dogma, about what bigfoot can and can't be, what it must and must not do, etc. with no scientific basis. In fact, there are counter examples such knotheads refuse to see because acknowledging the counter-example challenges the dogma. They claim to be "scientific" but they are the farthest thing from it. Rather, I suggest letting the questions lead and just follow whatever answers come without pre-judging and cherry picking.
MIB