Where we part ways is that you are still thinking in terms of “survivalism” and I in terms of “saving the planet.” Otherwise I agree. Saving the planet, however, is the primary goal, the first mission, and the only thing we should be thinking about, fostering everything else behind that goal. Even if most people die, it will make no difference if the planet itself heals and survives.
And, if we work hard enough, fast enough, smart enough, we may even be able to avoid some levels of "collapse." Doubtful, but it's worth a try. And it won't happen if we are stuck with a bunch of people out on their own trying to survive alone because they think, somehow, they are better than everyone else. So Human.