It isn't a personal attack at all. It is an attack on false facts. Army's are at more of a disadvantage when armed with false-facts, than with incomplete information. I welcome your opinions as readily as anyone else's, as long as people aren't being encouraged to confuse fact with opinion.
To give an extreme example: I could state as an opinion that "I think the weapon is unloaded." (For the record I can't think of a situation where I would say that.) Even if someone thought me to be generally knowledgeable, they should be giving it only the weight of an opinion and quickly discard the information. On the other hand, it would be irresponsible of me to make the statement; "This weapon is unloaded." This is how people get hurt. For that reason, I would rather opinions be stated as such. So no, it is not a personal attack, but an attack on facts not in evidence.
And yes, your "facts" are correct. Paris, Texas where I live does have a population of around 25,000. Then again, I don't think I have ever told anyone that I live "off-grid" or that it is any part of my strategy. When stating actual facts, it is a great idea to back them up as you did above with references.
When I retired, I moved away from the city to Paris specifically to bug out to a manageable community. My research (and yes, it is just my opinion) is that at 25,000, an agrarian community is just the right size for post-collapse. I am not a hermit, nor do I believe a solitary existence will assist this great nation to rebuild after whatever happens. Small Mutual Assistance groups are full of potential "gotchas" and in my "opinion", they don't have much promise for long term survival.
As far as I can recall, the only fact I have brought up is that nobody knows the manner, timeline, or after-effects of TEOTWAWKI. The rest of it is merely my opinion.