That's the thing really. These crazy fringe "theories" were kept to the crazies that sought them out. Now they've got this huge mouthpiece that is the internet and people that normally would never hear this garbage are reading it going "gee, this makes a lot of sense".
That's the issue, the morons that the rest of us could have just kept in check are now flocking to this stupidity.
Oh well. "Life's hard. It's harder when you're stupid."