jayjeti,
You use the word "definitely" where I likely would not. I suspect our differences regarding what constitutes scientific evidence and proof would differ as well.
Not having seen a Sasquatch personally, I can only evaluate the material online from the perspective it provides. So far, I've seen nothing that rejects the null hypothesis that there is no zoological Sasquatch. Indeed, despite its many promoters and believers, Sasquatch is not recognized by "science" for precisely the same reason - a lack of good evidence.
I remain open to the possibility however and find it an interesting thing to think about. But folks like Utah Sasquatch and Impossible Visits etc. seem to not have the same level of discernment and skepticism I do. Having watched all of the videos posted, I saw nothing that would convince me and much of it seemed foolhardy to be frank. I won't say it's a hoax, just that I disagree with the conclusions reached by these videos. I also disagree with several of the anti-science/anti-evidence promoted by these folks. I think they do the entire community a disservice and of course this doesn't help with science literacy in this country.
I do think the NAWAC is doing a much better job. While they have no come up with anything solid yet, they are at least aware of the fact that nobody ELSE should conclude Sasquatches exist based on the evidence they've collected this far. They agree to the basic ground rules of science and are not at all surprised that other people require them to provide DNA or a type specimen. That counts for a lot in my book because without and agreement on what actually comprises the scientific method, we get nowhere. It's a good system and it's moved humanity from the horse and buggy to CERN discovering the Higgs in well under 100 years.
Proving that Sasquatches exist is not an impossible task - if there really is such a creature.