You seem to talk in terms of black and white.
The "lies" you talk about are humanities best attempt to understand the universe we inhabit based on the limited knowledge we possess.
What is the alternative? We say we don't know and end it there? It's not as if these "lies" are stopping you from formulating your own theory or opinion. If anything, theories are proposed to encourage the pursuit of understanding.
(As for the statement of "The victor writes history". I completely agree.
But I'd say, it's better to have a story that is 50% true than no story at all.)