You hit the nail on the head, and it isn't limited to this memo. We have a serious intolerance problem in this country that goes far beyond Nazis and racists. Over the last 25 years our culture has warped to the point where opposing viewpoints are considered by many to be offensive. Kids have been raised in an environment where they are told that they (and their opinions) are always worthy of respect (no matter how uninformed or ignorant those opinions might be). Those who show insufficient respect (in the eyes of the person being "disrespected") are seen as hateful aggressors who must be attacked or silenced. In today's society, many people (especially young people) don't want vigorous debate between those of opposing views. They don't want to live in a marketplace of ideas where logic, morality, and the ability and willingness to articulate and defend your beliefs in a public forum are valued. These younger people have been conditioned to appeal to authority when they are offended or their beliefs are challenged, rather than answer the bell and debate the merit (or lack of merit) in an idea or statement.
Unfortunately this withering of public discourse is a bellwether for authoritarianism. You need look no farther than the recent outcry against the ACLU for their defense of free speech. There are very dark days ahead.