Actually it is perfectly capable.

In fact, nothing has been made or done without a philosophy guiding it.

It's just that for most people this is usually a self-made, uninformed, ad-hoc (and usually bad and unfit for the purpose) philosophy, or some low-tier second hand pop philosophy.

If you mean "philosophy can't tell what X exactly everybody should make or do" that's true. But that's also true for science and everything else. We are individuals, in different situations, different problems, and different goals.

Philosophy teaches us how to think about our problems, goals, etc, and how to put them in perspective, value them, examine them, etc.

It doesn't hand them out to us. Philosophy is not an oracle telling you what to do and absolving you from thinking (and that's true whether some philosophers treated theirs as such or not).

In its totality, philosophy is the exact opposite, a set of prior observations, discussions, hypotheses, thinking tools and approaches, to make you think better and to give you the benefit of the insight of others.

You get that insight on technical matters from science.

You get that insight on meta-matters (thinking about thinking, morals, etc) from philosophy.

Take a look at the enormous popularity of Stoicism on HN. I think quite a few people here would disagree with you about philosophy being "utterly incapable of telling us what to make or do".

You don't read Plato for empirical science though (or Aristotle for that matter). You read him for the philosophical ideas.

Whether language is X or Y for example is still debated, and while a modern linguist might know X research results or new theories, Plato still sets off many questions that are still dividing sides and are under debate. E.g. from a Stanford website breakdown:

"The positions of Hermogenes and Cratylus have come to be known to modern scholarship as ‘conventionalism’ and ‘naturalism’ respectively. An extreme linguistic conventionalist like Hermogenes holds that nothing but local or national convention determines which words are used to designate which objects. The same names could have been attached to quite different objects, and the same objects given quite different names, so long as the users of the language were party to the convention. Cratylus, as an extreme linguistic naturalist, holds that names cannot be arbitrarily chosen in the way that conventionalism describes or advocates, because names belong naturally to their specific objects. If you try to speak of something with any name other than its natural name, you are simply failing to refer to it at all. For example, he has told Hermogenes to the latter’s intense annoyance, Hermogenes is not actually his name".

So, it's ultimately a question of why do you even want to study philosophy in first place. I suspect that for most usual purposes, Plato is perfectly okay.

Have a look at Adam Neely on Youtube.