UFOs; Could Tesla Be the Source

In the video linked to this post, the narrator talks about how much of Nikolai Tesla’s work was confiscated by the FBI after his passing. Later, some of the documents were returned to the family, but much of it still remains missing. That was 1943. I’m wondering if the UFO phenomenon, which seemingly began in 1947, isn’t just technology and craft built using the information contained in Tesla’s writings? I know that we have some imagery purportedly showing craft from earlier times, but those could be fakes or some type of photo anomaly. I’d like to know everyone’s thoughts.