There are 2 types of Greys that visit Earth
the empty sexless husk ones that are basically slave drones to the Saurians
The "other" Greys are supposed to be humans that have evolved over eons
The Nordics are humans from @ 11000 years in our future
Eisenhower and other US Presidents did a deal with the ayys: alien tech in exchange for human abductees, experiments
Reptilians/Saurians are from Earth underground/beneath oceans:bad news