Is "Prepping" Practical Or Paranoia?

[4th law of robotics]

128. I think the poster you are responding to is profoundly ignorant on this subject

I don't mean that as an insult per se, just going by his responses.

1) he doesn't seem to think an EMP is a real effect.
2) he believes it would take a coordinated strike by a "fleet" of missiles to do any real damage.
3) he claims that because it is expensive and risky no one would ever dare such a thing.
4) he thinks the only way to acquire nuclear weapons is by building them, purchasing one is impossible.
5) he believes we can "vaporize" missiles at will and thus are under no threat.
6) he also claims the only reason someone would dare attack the US is if they were A) sure we couldn't counter-attack and B) could launch a successful invasion afterwards (like what happened on 9/11 apparently).

And of course he believes the only threat is from "camel jockeys" (his phrase) who clearly are too stupid to put together anything requiring money, coordination, a hatred of the US, cooperation from rogue nuclear states, and/or a willingness to die in the process.