Is it really folk music?

Yes. Just like classical music is really classical music and country music is really country music and rap is really rap.

I don't give a rat's ass what someone does for a living. It has absolutely nothing to do with whether or not they are real. It has nothing whatever to do with whether or not the songs they sing are folk music.

I work in an office now. Like most people, I've had lots of jobs, including construction, factory work, landscaping, and music. Do I get to be a "real" folkie? Do I? Huh? Huh?

Are these folk songs?
The Jolly Wagoner
John Barleycorn
The Devil and the Farmer's Wife
The Cruel Mother

Who is authorized to sing them as a real folkie? What do you call these songs if they are sung by an fake folkie? Do they suddenly become faux folk? How many highwaymen are riding around on horses using a flintlock and rapier to steal from passers-by? Does any song that no one, today, can experience firsthand need to be sent to the dustbin?

The first music I ever played was the blues. I taught myself. I'm a white guy from the American Midwest. I play the blues. By definition, that means I'm a bluesman. If Henry is saying that I don't play the blues (or folk), he can go fuck himself along with the elitist, exclusionary horse he rode in on. If Henry is just posting bullshit in order to start an argument, he can go fuck himself twice.