OP & readers too,

There is a very good book about Freemaonry I've been reading ... In fact it is excellent as the authors have really dug deep to uncover its earliest roots. The book is THE HIRAM KEY -part of several on this & Templars by the authors (got it & others at Half Price Books after learning about the "Hiram Masonic Temple" right behind Sandy Hook School) .

Some of their findings have been mind-blowing for me as I study ancient cultures / myths / rituals, etc for most of my life so to bring truth, liberation , & enlightment to humanity...

OP ,, I think starting with that book will give you insight and should share it with your friend too as it reveals core truths about many things that have been distorted, kept hidden, manipulated., so on. There may be some individuals or isolated groups who have done "evil" deeds or engaged in negative activities that wee thought to be - or appeared that way -to Freemasons, but I now believe that the core teachings & rituals are based on real events in ancient times, along with preserving higher ideals!