The same people who claim that god doesn't exist and that it was a way to calm people and control them in the past. Those are the same who now are using money with the same purpose, making the word "slave" the most appropriate to describe the current status of the world.
I´a m huge supporter of what you always write, because I´m a believer too, there is nothing that we can´t achieve with the technology we have and it will be always improving (imagine 2028). By 2020 Mars will be treated just like the moon (a reality and no longer a place that humans can´t reach), and we can´t live on earth with old systems like the current one. Let the Technology do its job!!