https://en.wikipedia.org/wiki/Decline_in_insect_populations#%3A%7E%3Atext%3DGlobal_estimates%2C-Insects_with_population%26text%3DA_2020_meta-analysis_found%2Cincreasing_by_11%25_per_decade.?wprov=sfla1

Yes, there is a well documented mass extinction occuring as a result of human activity. It's commonly referred to as the Holocene extinction or the Anthropocene extinction. It's affecting many species of animals, not only insects.