Hume (and others before him I assume, but I know it's at least in "Agrippa's trillema") said something similar but a bit more accurate: you can't get a moral should from what is, empirically/materially speaking. And politics are an extension of ethics. They're all matters of conviction, of belief (and standing behind them shows one's character, ofc). This is why you can be as smart and knowledgeable as possible and still be a total cunt (think Kissinger), because a person can simply not care.

PS. : "Chatting with AI" is, as the kids say, wild.

You are overlooking that humanity is subjective. I am human but that thing with a different skin color isnt.

So i can say "All Humans are equal and free and bla" and simultaniously enslave that differing colored creature over there.

Eventually someone who hast not shit for brains comes to Power and sees that the enslaved are just differing colored humans and have the motivation to truly make "All Humans are equal and free and bla"

Now since History exists some people are more "equal and free and bla" since some people just became Humans yesterday and need to some correcting Treatment so they can be "equal and free and bla" just as much as the other Humans. And correcting means giving them the same rights and bla.

But for some reason some people think that If some other group gain some rights (that they themselves already have) that they deserve a participation trophy as well.

The question in your text is a bit different from the one your body text. With regard to the title question: Yes, almost all senisible statements that can be made are contingent and are based on sets of assumptions that are the product of constructed context. It is actually one the major quests of western philosophy to work out the few possible statements where this may not be true. This, for example is what "Cogito ergo sum/I think therefore I am" by Descartes is about.

Here is one hugely important thing to remember:

Don't discuss politics politics with an LLM and expect a neutral and balanced answer.

LLMs are owned and controlled by fascists, these owners can and do influence how the LLM responds.

Speak with people, lots of different people, they all have biases, naturally, but after speaking with different people about politics and ideologies you will get a more neuanced view of them than you would ever get from an LLM.