Exactly! We think ourselves as a single
thing but we're more like a megalopolis inhabited mostly by bacteria with infrastructure provided by a clone army.
Of course in our dystopian internal society any unsanctioned individuality is quashed by the militarised police... unless of course it isn't at which point it metastatizes and everyone dies.
(The question about shared DNA is really interesting - so much of our individual drive for survival is a result of our K-strategist genetics and the resultant selection pressures over the years. If we spawned like octopi or grew from spores like orks, how much different would our worldview be?)