It's one thing. It's a mutation in the DNA that causes uncontrolled cell division. You unlock the key to that, you unlock everything. Anything else from these fucking science bros is just language games of classification.
EDIT: Apart from the thoughtful replies from TerminalEncounter and HiImThomasPynchon, the snark in the rest of the comments is through the roof. From the same people, btw, that will shout "ACAB right now," "guillotine capitalists right now!," "FALC right now," "gulag them all right now!" As though those are more realistic than what I'm envisioning. No wonder online/western leftists never get anything accomplished. Ironically, you're the behaving exactly like kind of people that would have made snarky comments in the past like "lol aboslish slavery, yeah I wish we could do that!" or "give women the right to vote, yeah if only it were that easy!" It's a weird kind of regressive reactionary thinking (except of course for things they personally want to get done, then it's "we can do it right now"). It's weird, with homelessness, the solution is "simply give them housing" but with this it's "it's more complicated honey..." Fucking pathetic...
The only people that benefit from this lumping together are hucksters who can claim they have the cure for cancer, literally never heard anyone else care this much about this distinction; what's the point that you're trying to make? That it's an excuse used to minimise sentiments to the effect of "I want a cure for cancer"? Is it working? Have you ever met anyone that went "Wellll, a cure for cancer would be great, but it's so hard to find, so in the end, I can't care that much about it" or "I would donate for cancer research, but it's a hard problem to solve, so I don't think I will"? Everyone wants a cure for cancer. What people don't want is woo woo snake oil that requires, get this, that cancer be in fact all the same disease in order for you to buy their shit.
Yeah, and even if that's not the intent, it certainly comes off that way. It's almost like a neoliberal brainworm response to a universal healthcare proposal: "Actually sweetie, it's more complicated than that, we can't just give everyone healthcare."
If that is the intent that someone uses it for then i will concede that i'm with you on this one; one should want to demand the impossible, especially if one has already fallen for comparatively more SF stuff like eternal life and the like. I guess I'm just sheltered in this regard because i never heard it uttered with this effect. More to say "it's more complicated than the nice lady that's selling you essential oils makes it out to be.