Mockery is deserved in this case. Not every cartoonish and outlandish claim needs to be engaged with seriously.
That's why you need openness, curiosity and skepticism to stand in front of these things. Those who mock this just look like arrogant fools. And you're not that, so that's why you need to respect yourself more, by not mocking these things that you're not qualified to disprove, but remain open in front of them, as possibly uncomfortable as that may be for whatever reason.
I hope you understand that. Also you need enough openness to understand that not everything outside of the common ken is equally (a very mocking description) "cartoonish and outlandish". A more profitable line of inquiry and discussion might be: What are your thoughts on the possibilities of there being an octopus-like species under the surface of Europa?
What are my thoughts on an octopus like species under Europa? What are YOUR thoughts on lizard people living inside Earths core? If we want to acknowledge every fantastical claim with zero proof we will just have created another religion not pursue science.
Now, if you think about honeycomb Earth, filled with caverns and caves, things get more interesting. We know microbes inhabit the subsurface in abundance, types we don't see on the surface. So who's to say what else might be down there? It's a mystery, and dismissing it outright is a mistake.
Now, about lizard people living inside our version of Earth: I believe they could exist. I know that in an alternate timeline where Earth's history took a different turn and lacked the asteroid which 65 million years ago provided the opportunity for mammals to evolve into apes and humans, it was reptiles that evolved into an upright humanoid form. These alternate timeline reptilian humanoids are indigenous to their own version of Earth and exist in a dimension overlaid with our own. Earth humans from this timeline encountering these upright reptilians and their more volcanic planet via transitory dimensional portals have mislabelled them devils and demons, and their world? You guessed it: "hell". So, is it that far-fetched to think that some communities of indigenous terran reptilian humanoids might exist in our timeline, in our dimension? Reports from religions, government insiders, and the public suggest it's possible.
Switching gears, what do you think about octopus species living beneath the ice of Europa? And, why the cynicism? Did you once believe in these things but grew disheartened due to disinformation campaigns? Skepticism is healthy; cynicism is not. Don't let fear or social pressures derail your curiosity.
So why not rejoin those of us willing to consider the unexplained? You'd bring a lot to the table. Humor is good, but mockery doesn't serve anyone, especially when we're talking about the unknown: it only insults your humility in front of the great mystery. And you're better than that, Ramraj07--so act like it, dude! What are your thoughts, man?