Yeah, sounds like something a draft dodger would say.

And one of them lived after jumping on the grenade.

https://en.wikipedia.org/wiki/Carlton_R._Rouh

“Of the 182 taxa of earthworms found in the United States and Canada, 60 (33%) are introduced species, these earthworm species are primarily from Europe and Asia.”

There are native species of earthworms in North America. Just that there are no native species at certain latitudes, because of the last ice age.

“Earthworms are shifting their ranges northwards into forests between 45° and 69° latitude in North America that have lacked native earthworms since the last ice age.”

While it may not do much to go after them on an individual level, there are ways to mitigate or slow their breeding and migration. For example they could introduce native predators that could reduce their populations.