Here are some examples of what philosophy tells us about the real world.
Being exists (existence)
Being is (identity)
Being is not non-being (non-contradiction)
Either being or non-being (exclusion)
Non-being cannot cause being (causality)
contingency
necessity
existential: causality, contingency, necessity
Philosophy tells us that truth is that which corresponds to its predicate.
Without philosophy, language would be meaningless.
Without philosophy, we would live as dogs, abased and slaves to our appetites.
I am a realist. In other words, I must be able to reduce an idea to the self-evident to be able to affirm it.
The first-principles of logic are the base self-evident ideas.
They are the ideas that must be employed to deny them.
Any attempt to explicitly deny the first-principles implicitly affirms them.
The question isn't, what can philosophy tell us?
The question is, what can be known, without it?
All you did was list a bunch of things. You didnt give any reasoning to support your claims that these are philosophical ideas.
Language, for example, is completely man made. We as humans agree that certain symbols/sounds refer to specific things or ideas, which then allows us to communicate. Computer languages are a great example. If I were to give you a disc with a file on it, but I didnt give the file an extension, and I didnt tell you what kind of file it was when I gave the disc to you, then you would have no way to open it. No communication can take place until we agree upon the method of communication by me telling you what type of file it is. There is nothing philosophical about this process.
Logic, for another example, is also not philosophical, it is scientific. We observe that things are the way that they are, and arent the way that they arent, and we summarize this observation as the law of identity. Never has anyone produced an example of where the law of identity was proven incorrect, so we make the inference that it is always true. The same is true for other laws of logic, they are all observed.
If you want to give an example of how philosophy has ever done anything useful for anyone, then you must give an example of something, explain how it was discovered, and explain how that something has produced tangible results. This something must also not be discoverable solely through observing and testing, as that would be science.
Here's an example of a scientific discovery:
Discovery Made: Acetaminophen is useful for the treatment of migraine headache pain
How It Was Discovered: Random, placebo-Controlled, Double-Blind Clinical trial. 2 hours after ingestion, 52% of patients treated with 1g of Acetaminophen reported little to no pain, while only 32% of patients taking the placebo reported little to no pain. Average overall pain reduction reported by those who took the Acetaminophen was 82%, while those who took the placebo reported an average of 46% pain reduction.
Benefits of Discovery: People suffering from migraine headaches can treat the pain by ingesting a 1g dose of acetaminophen.