As for 3Pac, he's mentioned in various music magazines for dying. I might have made the opposite call if I'd been AfD'ing when this was deleted, and I preemptively agree that Wikipedia's policies are tuned for a ~2000s conception of what reliable sources establishing notability are --- 2018 Wikipedia was probably overly skeptical of Youtube fame. But the decision here isn't arbitrary.
Again, you have to understand the policies before you can reasonably critique them. You don't have to agree with their rationales, but you do have to demonstrate that you know what they are, or at least not betray that you don't.