Its better to focus on saving the Earth because its hopeless to save humans. People are so ignorant and complacent and trusting of the corrupted establishment. You can't tell them anything either.
Though this is politically incorrect to say, the Earth is probably better off without homo sapiens and vice versa. We can never seem to get over our obsession with quick tech-fixes, which only leads to more problems and keeps us in the same Mechanical mentality.