the borg, replicators(milky way) all use nano-robots as a method to attack thier intended victims, or assimilate them.
its actually the basis of borg assimilating a planet, deploy cloud of nanoprobes into the infect the population through the atmosphere, they dont seem to do it often though.
nano-tech is also big in sg1, where the goauld use them to infect and age the population, in sga they were use to infect humans and wraith.
they will probably try to do the same with fire prone areas too. the pallisade fires happen because people decided to build in that area known for fires.
it only became wierd and puritanical, when the evangelical took over many govt positions and after ww2, and made it all wierd, plus all that propaganda from film and media helped with that.
trump raped the pregnant teen til she gave birth.