JdeBPErm … I shall go with:
An epidemic of lawn-mowing channels on YouTube, where "tidying it up for the neighbours" means razing all natural wildlife to a maximum height of 1mm, resulting in all of the cult's over-Winter wasp queen hibernation habitats being destroyed and the wasp population plummeting to near-extinction levels.
Mind you, this is probably too close to what is happening with #wasps in reality to make good fiction. (-: