The Khardashev scale I-III, but upto VII, is why aliens/advanced species don't get involved with us, since we're not even @ 1 yet as a species, not even close to it. We're like primitive amoebas (1-celled organisms), not even as advanced as say ants/bees etc, that work together as a unit. "bruh/bru/BAE"etc. & the beyond idiotic urban colloqiualisms & low IQ ghetto vernacular that have infested recent generation(s) are symptomatic of a species/collective consciousness being socially-engineered, diluted ad nauseam & an amalgamation of the Dunning-Kruger effect & cognitive dissonance. The thinning of the herd indeed, natural selection. If anything the aliens kept us from blowing each other up during the cold war/Cuban Missile Crisis etc...(we're too stupid to know we're too stupid).