You specifically asked why I didn’t recommend Ghost, so I told you why I don’t recommend Ghost. I wasn’t trying to talk you into reading his stuff, I was trying to make sure you (or anyone else tempted to read the series) would know what the books is about. It’s fine if you don’t want to read his books, and I can certainly imagine someone reading Ghost and swearing off reading any of his works ever again.
I’m pretty sure my first John Ringo book was March Upcountry, which is quite good and not at all like Ghost. But if you don’t want to read any of his stuff, I think that’s totally fine. And if you want to take the principled stance that no one should read his stuff, I can’t really argue with that. I think March Upcountry (aka Prince Roger) is quite good for Military SciFi and Under a Graveyard Sky is a really well done Zombie and rebuilding civilization series. I ended up reading Ghost after I had read a lot of his “normal” works, and as I said, I don’t recommend it, although I do think his other “non-purguing demons” stuff is very well done.