In my last post, I certainly did not mean to imply that your voice is shrill, as I hope you know. We've never conversed so I had no idea on what scale your voice would register.
More to the point, unwarranted or otherwise, they're still assumptions that may not be correct. That's my point.
In Ms. Gibson's final paragraph, she indicates the need to stand up against racist attitudes and manifestations. I agree! So unless you ask the Confederate flag bearer about his or her motivations, you may well be standing up to nothing at all. If you fail to ask, you may be guilty of saying nothing when saying something might have its greatest beneficial effect.