Me too, I thought these extremists were only stereotypes that existed in media, not in real life. Please dont take it as a insult, Im being honest here.
This part made me laugh a bit, because it was a bit unexpected:
"I’ve little need for ‘companionship’ or even intimacy; porn satisfies me well enough."
If I understood right you are saying that you fit in this category but not in the derogatory way, you dont do it because you want to act like that, its only a way that makes you feel better. Also you dont seem to act agressive towards women, as I've seen here and as I read in your post.
In part I even can say that I envy you a bit, since I've tried to be alone without sucess, only making it hurt more.