Here's some perspective: NH is one of the most politically correct online forums in US. US itself is one of the most politically correct and tolerant countries in the world. If you think NH is "incredibly unsafe place" for people who are different (in any respect), try to imagine what would happen to such people in some other cultures (e.g. some Muslim countries, rural Africa/India, etc). I bet an American white male community wouldn't seem so bad.
There was zero reason to get offended by the parent comment. If someone did, it's strictly their own personal issue. They should learn how to deal with it and adjust their expectations.
