The null hypothesis is where science begins. The statement "There is NOT a giant, hairy bipedal hominoid resembling Sasquatch living in the North American forests." So far, this statement has failed to have been falsified. It has withstood every test thrown at it for 50+ years.
Rejecting the null is commonplace in science - but not in the BF world.
Because most of Sasquatchery isn't science - it's believers posing as investigators. They take lots of low quality evidence and talk themselves into believing even more. If the NAWAC doesn't have a body by 2020, I'd say the thing doesn't exist.
The population of Wolverines in the Sierra Nevada is < 5 and we have multiple game camera images. Why no game camera images at all of Sasquatch? And don't say these photos exist - everything I've seen online is crap. Meanwhile there are excellent shots of elk, puma, deer, etc. It really doesn't make sense if bigfoot is real that all these people fanning out across the country can't acquire a single good image with established chain of custody and provenance.
I agree it's still possible Squatch exists, but the probability is less than one in a million. I would say one in ten million.