Given enough time I think yes. Time is the most important factor. We're not even remotely civilized enough for this to even be considered. This is the fatal flaw in the progressive agenda. Something of gargantuan proportions such as this would by necessity have to be a conscious choice of the peoples of the world. It may be the only logical conclusion to the enormous problems we face but it must be a decision reached not through force and coercion, but through mutual consensus. We're all on this planet together and it is in our best interests to learn to live together with each other.
But the progressive agenda is being forced upon us. Humans as a species are hard-wired to fight back against what we see as hurtful to our existence. Progressives may be ahead of the curve with their ideas (surprised that I said that,huh?), but the overwhelming majority of the human race is not even remotely ready for it. Attempts to force it upon us will be and are being met with extreme resistance.
Indigenous tribes still exist with minuscule contact with the rest of the world. Millions of people are willing to slaughter others in the name of their God. Many parts of the world are totally undeveloped and many are overdeveloped. Some nations still have caste systems. We're not even close to being ready for a one world government. Too many differences between us.
I had a really long post about this quite a few years ago. I tied the money aspect of this into it. Because IMO, until we find a way to function in this world without money, none of this is even feasible. Money, and the acquisition of it are truly at the heart of every problem we face. We're thousands of years away from this even being considered. I agree with Schadenfroh about something cataclysmic like an alien invasion possibly sparking this, but I don't think even that would do it. The overwhelming majority are still hardwired to fight but too many will be trying to make friends. We'll all die while the study groups are formed on how to best deal with the situation.
Guess who will be in favor of and leading the study groups?