Most of the little I remember comes from watching the old John Ankerberg show. He did a series on the Masons and it was not flattering. But John also didn't like Catholics and there was a debate with Fr. Mitch Pacwa appearing, who held his own.
How much of a true conspiracy there might be who knows, so much is secretive. And then many masons may have joined more for the social and political aspect, and not religious.
Still, for the core Masonic believer, they are apparently directly opposed to the Catholic church, even in this ecumenical world.
Could there be "Masons-in-name only", sort of cousins to the "Catholics-in-name only"?