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

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

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

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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.

Make it!