Like they picked a point in time and said "nope, we're good with the way things are" while the rest of us moved on. I've always referred to this as "evolution-locking" (actively choosing not to evolve).
Sometimes, in the rat-race world we live in, in all of it's superficial splender, I fantasize about that simple life. Then I think about manually plowing a field in black wool slacks on a hot summer day and I quickly come to my senses.
There are certainly modern varients of evolution locking factions. Folks living "off-grid". I think our collective decision to outlaw the technical evolution of chemical warfare agents has been a triumph of collective evolution locking. Same (I hope) will be the case for global environmental controls thwarting the evolution of carbon-emitting machinery and products composed of non-sustainable materials.
Write your manifesto and see if others will join. I probably won't, because I'm too curious to see what's on the other side of the signularity and I think more good will come from it than bad, but I'll read your manifesto and give it some thought.
The point of this parable is that you explicitly cannot undo this...