Darling, WE are the Reptilians. We still have a reptile hindbrain. All mammals do.
Or put it another way - we, humanity, are terribly barbaric in comparison to the elder races currently above us. Some of whom probably are Reptilian and are jolly nice people in comparison to humans with their endless wars, strife, hostility and other negative emotions.
Chill. Please. This is not a case of "us and them", it's more a case of "us the humans who are rather backward, and us the aliens who are not so backward".
There isn't a THEM to worry about. Although plenty of humans want you to think that, because it keeps them in power.