Because the free masons are the puppet for the master illuminati plan
1770: Mayer Amschel Rothschild draws up plans for the creation of the Illuminati and entrusts Ashkenazi Jew, Adam Weishaupt, a Crypto-Jew who was outwardly Roman Catholic, with its organization and development. The Illuminati is to be based upon the teachings of the Talmud, which is in turn, the teachings of Rabbinical Jews. It was to be called the Illuminati as this is a Luciferian term which means, keepers of the light.
1784: Adam Weishaupt issues his order for the French Revolution to be started by by Maximilien Robespierre in book form. This book was written by one of Weishaupt's associates, Xavier Zwack, and sent by courier from Frankfurt to Paris. However en route there, the courier is struck by lightning, the book detailing this plan discovered by the police, and handed over to the Bavarian authorities.
As a consequence, the Bavarian government orders the police to raid Weishaupt's masonic lodges of the Grand Orient, and the homes of his most influential associates. Clearly, the Bavarian authorities were convinced that the book that was discovered was a very real threat by a private group of influential people, to use wars and revolutions to achieve their political ends.
1785: The Bavarian government outlaw the Illuminati and close all the Bavarian lodges of the Grand Orient.
1786: The Bavarian government publish the details of the Illuminati plot in a document entitled, "The Original Writings of The Order and Sect of The Illuminati." They then send this document to all the heads of church and state throughout Europe, but sadly their warning is ignored.
1798: John Robison publishes a book entitled, "Proofs of a Conspiracy Against All the Religions and Governments of Europe Carried on in the Secret Meetings of Freemasons, Illuminati and Reading Societies." In this book, Professor Robison of the University of Edinburgh, one of the leading intellects of his time, who in 1783 was elected general secretary of the Royal Society of Edinburgh, gave details of the whole Rothschild Illuminati plot.
He advised how he had been a high degree mason in the Scottish Rite of Freemasonry, and had been invited by Adam Weishaupt to Europe, where he had been given a revised copy of Weishaupt's conspiracy. However, although he pretended to go along with it, Professor Robison did not agree with it and therefore published his aforementioned book. The book included details of the Bavarian government's investigation into the Illuminati and the French Revolution.
That same year on July 19th, David Pappen, President of Harvard University, lectured the graduating class on the influence illuminism was having on American politics and religion.