I believe that the laws of probability are against you. First of all, we know without doubt that both bipedal apes and large hominids have existed in the past. Secondly, we also know without question that oral, written, and glyphic human history worldwide record such creatures in our recent past. Thirdly, we have decent moving photographic evidence that they exist at least as recently as 1967. Fourthly, we have good trace evidence of their current e istence. Finally we have lots and lots of testimony of their sightings.
The evidence really exceeds a reasonable doubt. Of course, it doesn’t exceed denial, but that’s okay. Frankly, I don’t care if you accept their existence or not.