[neverevergiveup]

From Britannica: Invasive species, any nonnative species that significantly modifies or disrupts the ecosystems it colonizes. Such species may arrive in new areas through natural migration, but they are often introduced by the activities of other species.

Substitute culture(s) for species.

[Bonemaker]

“but they are often introduced by the activities of other species.”

The other species being democrats...an invasive species themselves.