Hominid; the giganto theory has neevr been anything more than an attempt to shove a round peg into a square hole. The odds of a largely herbivorous ape from a tropical climate in SE Asia getting to North America, crossing tundra and other foreign terrain without being predated upon by native predators or simply outcompeted, is the longest of long shots, and why would they move if there was no environmental factor to make it needed? Was there any>
Apes: Gorilla/Gibbon/Cimp/Orangutan, have had populations discovered in far more remote places than our own North American backyard, they arent smart enough/not curious enough to remain hidden that long.
Forest People? How does that not lead back to some hominid derivative? Or if you want to head down the woo route, PROVE it...... (Interdimensional, spirit being nonsense without proof.)