There's a lot of theories going around because there's quite a lot of circumstantial evidence. Just because there's no proof does not automatically make it a conspiracy theory.
So what you're saying is maybe Hillary Clinton did have an FBI agent murdered, and maybe Putin and the Dalai Lama really did meet up to talk about how Clinton and Obama started ISIS, a few days after the Pope endorsed Trump.
Wow. What a shitty response. If people responded to your comments with that kind of non-sequitur you'd be all over them like a rash. But then you dole our rubbish like this.
Here's some "fake news" for you, from a news site listed on the fake news list:
One of the most egregious examples of fake news is the story from the nonexistent news organization, The Denver Guardian, about an FBI agent involved in the Clinton investigation being found dead in a suspected murder suicide. This article was posted on November 5, 2016. It is unequivocally fake news. The creator of the fake article, is the CEO of a company named Disinfomedia.
There is no other side to this story. There is no partisan tilt that cherry picks facts to construct a narrative. It is entirely fabricated, and crafted specifically to disinform its audience.
I would like to explore the frontiers of what you're willing not to dismiss out of hand. Can I interest you in a story about a secret blood cult John Podesta runs? How about the Lizard People?
All I know is that John Podesta and his brother were invited to a spirit cooking dinner [1]. I haven't seen any evidence they attended but it was an interesting email that was uncovered.
See, this is the kind of dumb crap that isn't news.
In less than 2 minutes of googling and reading you can find a comprehensive answer to all your questions, but instead you put forward a leading statement like "it was an interesting email that was uncovered."
It genuinely was not. It's not interesting, it's mundane.
There's a lot of theories going around because there's quite a lot of circumstantial evidence. Just because there's no proof does not automatically make it a conspiracy theory.