Basically,
There is very little to no evidence to support any of these claims. 99% of people that claim such experiences are recounting fake memories.
There are some cases such as Billy Meier and montauk to name a couple that are back up with credible arguments.
Phil Schneider was another good example on ties with the truth in regard to offworld issues.
If you look around you can find credible sources. From the flow of your PM, you have been reading questionable sources.
There are a lot of pretenders and hobbyists out there. Also there is a VERY BIG problem when people read different things from different sources. Much is fake, some of it rings of truth. It gets mixed into a bigger picture, this picture - however- is wrong.
just filter what you read, don't just jump to any old site and read unfounded stories. Also beware of ANY channelers. Always approach any channeler no matter how 'well regarded' with a healthy degree of skepticism.
also, the planet is a vast gene pool of genetics, are you sure that some of our creatures aren't based on 'their' templates, rather then the other way around? just a thought...
kind regards,
Olly