The only problem i have with this argument is lumping all the UFO/UAP events under “aliens” is too broad. There are several possibilities for the NHI appearance other than creatures in spaceships from other planets, which is what “alien” usually is seen to be. You know them all: human time travelers, a psychic/spiritual phenomenon, and visitors from other dimensions, which could qualify as “alien” of a different sort, or all the above, or none of the above.