Someone's political views could be considered a partial or biased view. "unpopular political views" are subjective, 150 years ago believing slavery should be abolished was an unpopular political view, don't believe it was political, look at the all the shit that went on during the election of Lincoln and the secession of the southern states. What is popular today will not be tomorrow, so that fluid metric is horrible for determining what should or shouldn't be acceptable.
On some levels I agree with you about the industrial society, but then you need to consider that a lot of people would die off, which might not bother you, but then at least one person will fall back on the "old ways" to gain an advantage. It's like the movies where "all guns are banned" and everyone has great sword or hand to hand skills. What are the chances someone doesn't at some point say "fuck it, I'm using a gun because I can't fight with my hands or a sword". Basically you're bucking against human nature, we are always looking for the next advantage. So while the pre-industrial world sounds very romantic, I don't consider it practical.
Now to your last statement, let's switch it around a bit, let's say ole Kyle there went to a lawyer and said "hey, if I go across state lines with my trusty AR to "guard" some businesses and I shoot some people that threaten me, am I alright doing that?" and the lawyer says "yeah, sure you're doing nothing wrong". That attorney would be in deep shit because he dispensed legal advice that helped create the situation. Now on the flip side to this situation. The cop is basically doing the same thing after the fact from an official police email account. Now if he did it from his personal email account "chunkylover68@aolcom" (little Simpsons gag for everyone) it would have just been another dude stating whatever, especially since he didn't state "as a member of the law enforcement community you did nothing wrong". The second he used the work email, he sealed his fate.