That's a bit of truth, a bit of politics, a bit of PR.
Freemasonry is what bound most of the founders of the United States together, other than their immediate mission. Do you think that the fact that Franklin was the only Mason on the design committee limits his impact, or minimizes the fact that he, Washington, Jefferson, Adams, and dozens of others had been sharing certain common, private social threads for decades? (I do not.)
I'm not surprised Masons are taking the political stance of minimizing this.
Besides, Freemasonry, as I mentioned, is just the surface layer, the first point that these various factors converge. They are deeper and older. Franklin in particular was more intimately connected to the older threads, both in the U.S. and especially in France.
Love is the law, love under will.
Yours in L.V.X.,
Jim Eshelmanwww.jeshelman.com"Success is thy proof: argue not; convert not; talk not overmuch!" - CCXX 3:42