If it wasn't the Reptilians, then it would just be a different group that try to eat us.
I have always subscribed to the 'You are what you eat' theory and tell my friends that even eating an Octopus is introducing alien DNA into your body.
As someone a bit older, one gets to notice that people become what they eat. Especially those that eat a lot of meat. For example, Beef lovers get big and cow like in their later years while fish lovers stay more trim.
Hopefully the R*'s have eaten enough emotional humans that they just turn to emotional wrecks and storm off in a huff. It sounds like they are already talking about it.
I've heard in the Al Bielek tales that for the most part, on one of the main timelines, Humanity does get left alone, has enough food, and the biggest challenge that exists is the lack of challenges.
A future with no elected or appointed governments? no money? run with computers?
Jumping ahead? Maybe, maybe not.