There have been many books written about "exposing" the FreeMasonry as a false religion- check on the writings of Dwight L. Moody, William J. Schnoebelen (
http://www.jesus-is-savior.com/False...y_exposed.htm), Tim Shaw, Jon McKenney and a host of others.
What is Freemasonry | Freemasonry Exposed | Freemasonry vs. Christianity | Masonic Research Links
Whether every Mason ascribes to all what is supposedly believed in - I doubt it.
From personal experience I can say that without the Shriner's Orthopedic Hospital, my youngest son would have the greatest difficulty getting his left hip operation and the Scottish-Rite Hip Brace that he had to wear for 18 months after the surgery. That was completely done at no charge. I never could have afforded such excellent care via my own means. The brace alone would have cost me well over a thousand dollars. Plus the follow-up therapies.
About the fear - since this a supposedly secret society - people wonder what goes on in the temple and if you are not a member, you cannot get in. I think that is one of tha factors - people condemn what they cannot understand or gain access to.