The public thinking about extraterrestials can be found in opinion polls.
Opinion polls about extraterrestrials are most revealing…..from the
encyclopedia of science…..
A 1997 Time/Yankelovich poll revealed that one third of Americans are convinced that intelligent beings from other worlds have visited the Earth. Of these, nearly two-thirds believe an alien spacecraft came down near Roswell and four-fifths believe the US government is not telling all that it knows about UFOs. In a 1998 poll conducted by the Marist Institute for the Planetary Society, 60 percent of those interviewed thought that there was intelligent life on other planets and of these, 47 percent thought that intelligence elsewhere would be more advanced than us, 40 percent thought it would be at about the same level, and only 13 percent thought it would be less advanced. To the question "Do you think life on other planets is friendly or hostile?", 86 percent thought it would be friendly and 14 percent hostile.
An excerpt from the
Library of Halexandria
In polls on the subject, a clear majority of Americans and/or Europeans are definitive on the subject that yes, there is something out there. If you then add anyone believing in a supreme being, angels, divas, gods and goddesses which derive from or spent most of their time off the planet, then by definition, all of these people believe in extraterrestrials.