Why don't people believe we were created by aliens!?!?

Its in ancient drawings and writing. UFOs have been spotted all across the world, and the fact FBI doents were released and described 3 feet humanoid creatures were summarized in it. There was a video shown from a cam recorder in a police officers car that showed a hovering round object slowly crossing a house and i highly doubt that it was edited. Oh and the fact that an ancient language, so old by the way, was used to communicate with a abducted person who spoke in a very old language which proves they were hear since the beginning of time. Not to mention our DNA was modified and as time pes by our knowledge capability increases; ever new generation is shown to be smarter somewhat. Just look at how technology is progressing. The consensus is dinosaurs were wiped out by weather or an asteroid, but its a fact weather can be controlled with a special laser that is beamed out from space into the center of a forming storm. Something like that. So what do you think?