Have you really looked into her philosophical work? I think she’s historically the closest to constructing a convincing ethical system based on logical principles connected to reality. Your last quote is something that might as well have been a toned-down version of her ideas, given how close it is to what she believed in her life.

I don’t suggest ignoring anything. However, many people take the fatalist perspective as a careful one without really evaluating its accuracy, and thus it spreads and locks an uncertain future into the result it assumes.

Firstly, that pessimistic attitude is invading the minds of many and all it does is confuse values and prevent progress, so I would recommend focusing on doing what you can to assert your values and bring change rather than spreading fatalism.

Secondly, this formulation has been done to a great extent by Ayn Rand, and reading Peikoff’s full exploration of her ideas would be a great way to see this in detail. I think her prejudice prevents her from reasoning accurately on some higher-level points, but the point is that ethics and politics can be derived from basic axioms specifically because all humans have one core value of their own continued existence. I’ve been working the details out and I’d like to talk about it if you are interested in playing with the ideas.

The solution to the “both sides” argument is to develop a rigorous system of values based on purely logical reasoning with a definitive answer to what is ethical and what cannot be tolerated. As long as people follow emotional arguments and lines of reasoning based on higher-level concepts that fail to highlight the chain of proof that has led to their truth, then uncertainty will cause inaction and complacency.