I wouldn't be surprised to learn that human overpopulation and profligate consumption make a few species' population to thrive (e.g if they feed on human waste, share habitats, etc) while still causing a mass-extinction event and an ecological collapse (see https://en.wikipedia.org/wiki/Holocene_extinction).
Multiple independent species have shown that in Europe, the insect biomass has dropped by more than 75% in the last 3 decades. In France, bird populations have fallen by 33+% over the last 15 years, but migratory birds are disappearing even faster (e.g the meadow pipit population has declined by nearly 70%).
edit: s/strive/thrive
Not nit-picking, rather trying to help readers for whom English is a second language. :)
I can think of a few examples. Pigeons, rats, gulls, cockroaches, etc