Aliens: "We don't understand why 8.2 billion humans are just standing by while a tiny (tiny!!) fraction of narcissistic, flagrantly benighted terrestrial fucknuggets ruin the planet and risk the future of the species. It makes no sense."
@Richard_Littler OTOH, the aliens might do themselves in as well. Maybe the Industrial Age is the Big Filter, the reason why we don't see any alien activity in the galaxy: Species never become space travellers because they ruin their home planets' biospheres with the unintended side effect of their Industrial Age, which ends in utter collapse.