Husband was one, as was my father, and my grandfather.
I used to help him learn the rituals.
There are different constitutions, some allow women, some don't.
Basically, he'd get all gussied up in his tux once a month, with his apron etc, they'd go and do the rituals, then they'd all argue about how everyone else was doing it wrong, and then tuck into a supper of sausie rolls and whisky. A lovelier bunch of old fellas I never did meet.
They do an awful lot of charitable funding, but don't advertise it. They tend to look after the widows and orphans of freemasons, if they need financial help.
My husband is neither right wing, nor misogynistic. Neither Christian, nor Satanic. A (rabid) Atheist if anything.
I know an awful lot of people who have never had anything to do with freemasonry who are convinced they know a hell of a lot more about it, than those that have been in it, and had generations of their family in it, and nothing will have them think otherwise.