I think for the most part, the nature of the issue just makes it inherently open to objections of "bedside manner" when discussed in "polite society."
What do you think I could have done better in terms of phrasing or what have you?
It's not a perfect example but it's an easy way to show that you are thinking about other people and what they might be thinking. You can combine this with an invitation for people to voice their opinions. People like knowing that their opinion is valuable especially when your assertions put the reader at odds with their own opinions.
Just a few things I've found help internet discussions. People read things with different voices and diffferent inflections so it's important to be explicit when possible, especially on a subject that is truly difficult to discuss in polite company.