"Aren't both the KOC and the Freemasons basically just drinking groups for older men?"
To some degree. It is, and always has been a "fraternity." It's a place for men to have fraternal bonding, have fun, and do good works that they could not otherwist do by themselves.
There is no religion invovled at all, except that all the value (and lessons) come from this two commandments: "Love the Lord, thy God with all thy heart, and love thy neighbor as thyself."
AND yes, the God is the God of Abraham, Issac, and Jacob.
I joined the York Rite (the strictly Christian branch of the fraternity) because they raised money to buy a neonatal ventilator --- two weeks before my daughter "happened" to need it when she was born months early.
Saved her life.
The evil people who critize masons are doing Satan's work, whether they know it or not.
I thank you and others for defending the craft against such as those who would attack it on this forum. The level of ignorance concerning the Masonic craft never ceases to amaze.