Bigfoot As An Example Of Metaphysical Realism

Metaphysical realism to my understanding is the world as an independent entity and what it contains outside of how we as humans perceive it to be. Basically, it is what it is. The objects and beings within the world exist and define the nature of what is. There are two conventional aspects to realism by looking at everyday objects and their properties. The first is a claim about existence. Take black holes for instance. No scientist has actually ever seen one, but theory predicts they exist, same with the fact that they are swirling bottomless objects of matter. The second aspect concerns independence. The fact that black holes exist and are bottomless objects of matter is independent of anything someone says or thinks about the issue at hand.
Just to illustrate, here’s an example. Most of us are realists about the existence of dogs. We believe the world contains dogs and their existence in no way depends upon our perceptions of them or thoughts and beliefs about them. But what about the concept of Bigfoot? There are lots of stories about large yeti looking creatures hiding in off mountain areas and occasionally interacting with people, but we're not sure if there is any truth to these tall tales. They may be mistaken sightings by frantically scared hikers that have claimed to see some enormous rare creature that may resemble Bigfoot, or they may be sociopaths in chinchilla coats just messing around with people? Alternatively, these supposed ‘sightings’ might simply be stories for shock effect to lighten the mood at a campfire or forewarning to keep people aware of the dangers of wooded areas. If Bigfoot sightings were actually proven to be credible we might speculate that they do indeed exist and are entities of the world. And if they didn’t concretely so exist then we would know they weren’t entities of the world. And whether they did or did not exist, in no way depends upon our experiences or beliefs on the