I DON'T BELIEVE IN UFOs
However, I DO believe in life in one form or another on most worlds, even if 99.99% of the time it is just simple plant or animal life.
There are two main problems with UFOs:
1. They demand FTL technologies to enable them to get to Earth and visit us, which is extremely, if not impossibly unlikely, but that
2. They will have reached our level of technology or beyond to be able to achieve 1. without having destroyed themselves, which is possible, but we are close to wiping ourselves out either through nuclear war or climate change
Therefore, these reports I see of UFOs I can only deem as fake or wishful thinking.
One last note: I love Star Trek, but that's just a TV show dressing humans up as aliens to explore the human condition, and sci-fi doesn't count in general when discussing this kind of stuff, so...