Sacred Haven of Debauchery

The best world possible.

Well, yes, but what else can you do? Not all species of living beings have lived unchanged for millions of years; there were also dead-end, extinct branches for various reasons. Perhaps we are one of them, but we at least have a chance of a backup, like Nebos in Romania and Scotland, unlike some extinct dinosaurs, who had no choice but to endure the troubles that occurred, simply because of their wretchedness and lack of ability to influence the situation.

We also need to force everyone to stop reproducing. Kill everyone before they reach reproductive age. At least, all the elves.

The elves won't stop. Just look at Nebos, dozens of pregnant alt-girls from Russia to Scotland. Only mass shootings will help.