I don't buy a fundamental premise underlying your survey answers. Your answers based on the concept of
extra-terrestrial Unidentified Flying Objects. There are other types of Unidentified Flying Objects.
There are Intelligent Origin UfOs such as at a shoot with reactive targets, 'Is that a a piece of the fender or a piece of the 25 lb gas bottle that was sitting on the Tannerite in that car?' Another example would be 'Is that a roof piece or fender flying through the air? as Jeremy Foley's car rolled down Pikes Peak. Then there is the classic flying saucer UFOs.
But there are also Natural Origin UFOs. Is that a newspaper or a 4x8 foot piece of plywood flying around that funnel cloud? Or how about climbing around some rocks at the sea shore. Was did that thing that flew through the air and landed on my back where I can't see it come from a passing seagull or did was it a splash from a wave hitting the rocks?
So yes I know there are UFOs. I have seen plenty of things, both of Intelligent Origin and Natural Origin that I are unidentifiable to me.
None of the answers cover all the UFOs I have seen.
Have A Nice Day.