You should read some philosophy of science. Start with Karl Popper. He's the person whose work you're referencing when you talk about falsifiability, and I think you'll relate to his writing, but he'll also challenge you to think a little more deeply about what science is - and indeed, what truth is.
How much substance is required beyond the fact that these ideas are unfalsifiable? To a scientist like myself, saying that places the burden of evidence on the other party, who can only respond with a basis for empirical falsification. But that's not possible in philosophy, by definition.
Am I obliged to prove that Bigfoot is a myth? No, I need only say there's no evidence. And I'm not under a burden to to prove a negative in such a discussion -- impossible in any case. That makes a statement about Bigfoot comparable to statements about philosophy -- it's unfalsifiable.
> Your post is a pervasive and automatic mental pattern, common in a population that has been raised to uncritically worship abstract philosophical notions like "objective truths"
It didn't require many words for you to establish your post-modern credentials. From here, assuming I were inclined, we would have an inconclusive-by-definition debate about whether there are objective truths ... we would philosophize.
Thanks ... I'll pass.