The only problem with that is there have been many actual conspiracies both historically and currently and many of them are not in the least theoretical in nature. Conspiracies of several kinds brought about American participation in both world wars. And however one feels about President Donald Trump, it must be conceded that he has been the victim of a number of conspiracies, first to deny him the GOP nomination, then to insure that he be defeated in the presidential election, and subsequently to completely delegitimize his presidency.
Prior to Trump there have been numerous conspiracy "theories," many of which have been quite plausible. The "suicide" of Defense Secretary James Forrestal comes to mind, followed by the assassination of John F. Kennedy, which has been credibly credited to both Cuba and Israel. And then there is 9/11, perhaps the greatest conspiracy theory of all. Israel clearly knew it was coming, witness the Five Dancing Shlomos cavorting and filming themselves in New Jersey as the twin towers went down. Also the Saudis might have played a role in funding and even directing the alleged hijackers. And we have also had the conspiracy by the neocons to fabricate information about Iraq's WMDs and the ongoing conspiracy by the same players to depict Iran as a threat to the United States.