Yes, I like your reply. I am interested to see what others think.
I can't fault the words of the songs.
Anyone can come up with nice words however.
The words don't go with Heavy Metal/Rock . Words should correspond to the music played.
This type of music is an expressive tool for the angry and rebellious not for the joyous and peaceful soul.
( yes Heavy Metal bands do have some softer songs but I am concerned about the HEAVY music) I'll accept the softer ones.

I would hope that any one replying to this post knows what it is to have the Spirit of God within them in reality
and that they live with the fruits of the Spirit in their lives, otherwise their comments will be tainted heavily by the flesh
or the desires of the outward man.

I am particularly concerned when some of the bands sound as though demons are coming through their voice,
screeching and growelling. example - Demon Hunter who I have listened to.
This is not even up for discussion. If you can't see the error in this then something is wrong or you are an immature Christian.

Should I teach my 5 children to listen to this music? Would those that view these statements encourage me to steer them in this direction?
Should I corrupt the beautiful atmosphere in my home with heavy rock?
Should I allow these warped album covers in my home to produce warped feelings in my children? Should I teach my children to smash guitars on my floor while playing violent music? Should I encourage them to follow the image of these bands - I don't think so!

I am endeavoring to teach them to follow Jesus.