I've thought a lot on this topic. I agree that I think at least 99% of UFO sightings are bogus.
I do think there is life on other planets, but I think that they are so far away that we will probably never have any contact with them. I still like to read science fiction with space travel and alien species though, and of course I like all the Star Trek series and Alien Nation (loved that movie and the TV show was even better - cross between science fiction and buddy cop show. Got into subjects involving racism a lot, but the "racism" was against the Newcomers, or Tectonese, rather than human races or ethnicities. I found that show fascinating.)