I’m not west Texas Mennonite, so I couldn’t say with authority. Both Amish and Mennonite are Anabaptist, but Mennonites don’t eschew electricity, cars, and technology.
The Mennonite families I’ve known were rural and lived in a more humble fashion with a hard-working ethic reminiscent of 1950’s USA. They were also inclusive, so they probably would embrace biker metalheads.
This was 4 weeks ago: https://www.nbcnews.com/news/amp/rcna136205