I believe there is life outside of our own... the universe is huge, chances are there is SOMETHING out there.
Do I believe in UFOs? Of course, but I don't think anoybody on earth has ever seen one. If something WERE to travel that fast, it definately would not be in solid form.
And I agree, the theories you posted are really questionable.
Also, if youw ere asking this as a question, why did you then try to explain their existence? I mean, you didn't even have a "I believe" or "I think" at the beginning of that rant. You just started stating it like fact, and then began to sound unintelligent in your lack of knowledge in the propulsion department.