Are you not operating under the influence of your own personal views and values when you say things such as we may need a dictatorship in order to save humanity; and is the premise of that not based on your personal view that value exists in the continued existence of our species?
No, you don't understand
Here is what I am saying:
1. We are facing a number of disasters, each of which on its own is potentially capable of ending human civilization (energy resource depletion (Peak Oil), climate change, raw resource depletion (Peak Everything - metals ores, fertilizers, etc.)), ecosystem collapse, severe water crisis, nuclear war caused by combinations of the above, and others. This is a fact, no opinions, views, values, whatever you wanna call it.
2. We (>99% of us) are in complete denial of this fact. Not only that, the inertial barrier rooted in religious and political indoctrination (e.g. there is no need to worry about anything because God/the market will take care of everything) and the very poor level of education of most people on this planet, makes it absolutely impossible to make people aware of this fact. This is, again, a fact, that nobody can argue with
3. The nature of the crisis is such that it requires IMMEDIATE action, and action of the very unpleasant and radical kind (reducing consumption and population and investing all available resources into solving the resource problem, not into having a good time). This is what we have to do, if we want to be here 1000 years from now, 10000 years from now, if we want to make it to the stars, etc. Otherwise we will go extinct. This is again, a fact that no sane person can argue against after he looks at the data.
4. Because of #2, and because the measures we need to take will necessarily involve telling people that what they have been dreaming for their whole life (i.e. something involving increasing their consumption of resources) simply can't happen, it is extremely unlikely that people will participate in any kind of activity that actually solves the problems (it may even be the case that there is no solution to the problems but let's be optimistic). This is not a subjective opinion, it is a fact
5. Therefore bottom-up solutions of the problems are impossible, on the urgent timescale needed. It just can't happen, because of the huge inertial barrier existing and the active resistance that real solutions will be met with by a large part of the population. This leaves the rather unpleasant conclusion that our only chance is a very powerful (and very intelligent and knowledgeable) worldwide regime that is both capable and not afraid of implementing the necessary measures so that we somehow make it past this crisis. Again, I don't see where my individual views play here, this is what the data plus some not too complicated logic tell us.
This means that people who post all those conspiracy theories about how a world government is in the making and this will be the end of it and so on, actually get it completely wrong, because this maybe our only chance for survival. And by "our" I mean the species, not the individuals. You should understand that in the bigger scheme of things your life, my life and anybody else's life does not mean shit, it is the species, the planet and our civilization that we have to preserve and develop further. We only have one chance, and we are blowing it away. Now, this (whether in the really big scheme of things even the existence of the human species means anything) is debatable and a matter of subjective interpretation, but let's say that the phylogenetic survival instinct coded in us should be strong enough for us to do something about or survival.