A statement isn't slanderous if it is true and provably so. And it's called libel if it's in print, in case you're interested.
Since when is one's gender or marital status a shield to hide one's behaviour behind? You reap what you sow.
By your indignant response you only indicate the arrow hit pretty close to the mark.
The good advisors are out there, but they aren't chasing the clients. The clients come to them.