It is my impression that new age thinking has influenced many of the 'contactees' and such, right?
The alien issue: I guess, if you think that there's 'unity' in the universe, you'd have to think that there are other beings there to unite with. And if all is basically 'good', those beings would want to help us and communicate with us in human terms, because of the supposed unity and goodness.
In that light, I wouldn't be surprised if New Agers are 'targeted' by story tellers.
The green stuff: New Age art often depicts a natural scene where people look kinda elf-like and in direct harmony with nature, and perhaps even space, that's my impression anyway.
Of course, that is not a realistic depiction of nature, it would probably take some alien intervention, or something more than that, to turn the world into New Age heaven!
And so, the reality is that the New Age world-view creates more problems than anything, in case you're trying to remain scientific, and argue scientifically, and that also goes for the biological and environmental issues.
And that certainly goes for ufology too imo, we can't really use belief and speculation for too much. The name of the game is that great discoveries await, but the problems seem endless getting there (if there is a 'there' in ufology).
Of course, that's also why I enjoy the Paracast, namely the active attempt to weed out the crap, to gain some overview, and build a reasonable platform for the present and the future. I mean, I'd rather hear some grand stories about cool aliens, sure.. But then again, if they're not credible stories, I'd rather not! Because they'll just be a distraction and add more chaos to the already difficult topic.