> you think that enough of the complexity of the universe we live in is faithfully represented in the products of language and culture?

Absolutely. There is only one model that can consistently produce novel sentences that aren't absurd, and that is a world model.

> People won’t even admit their sexual desires to themselves and yet they keep shaping the world

How do you know about other people's sexual desires then, if not through language? (excluding a very limited first hand experience)