Extraterrestrial intelligence is extremely unlikely to help us. Not because its existence is impossible, but because if any such intelligence were already here, and in any sense benevolent, it would have intervened long before our crises reached the planetary scale they clearly have.
Short of the darker possibility that it is they, rather than rogue billionaires or runaway artificial intelligence, who are accelerating us toward climate and conflict catastrophe, their silence leaves only one conclusion. Nothing external is coming to correct our trajectory. These are strange days on planet Earth. No one is coming to save us.