use preservationist in a sentence.
When have preservationists ever had their way, though?
As someone who would take such a preservationist position, I think this is my best argument: It is morally inconsistent to think that super-intelligent life should leave us intact if we were found, and at the same time be willing to interfere with vastly less advanced life, for our own gain.
There's an ongoing preservationist debate over whether or not to re-plant the flag or leave it where it is.
Traditionally, SNES emulators have used the internal game header and a whole stack of heuristics to guess at what memory-map each game expected, but that's not exactly what you'd call a preservationist approach, and caused problems for homebrew that wanted to set up a perfectly legitimate memory-map that no commercial games happened to use.
And this is just the biggest problem, not taking into account the philosophical preservationist argument, or the smaller problems like increased risk of global conflicts due to mass displacements, ocean acidification, etc.