Not a YouTube channel, and this is probably more humorous than you had in mind, but otherwise that pretty much describes Existential Comics.

even if it exists: do it if you think you can do it

Make it!

Check out the Alex O’Connor channel. Not an exact fit, but I think it might scratch the itch.

You might find the lectures from Harvard called Justice: What’s the right thing to do interesting. There’s also a book by the same name written by the professor that I’d definitely recommend.

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