Civilities: Why do gays get to fly the rainbow flag when it offends people but we can’t fly the Confederate flag?

https://www.washingtonpost.com/lifestyle/style/civilities-why-do-gays-get-to-fly-the-rainbow-flag-when-it-offends-people-but-we-cant-fly-the-confederate-flag/2015/08/14/5e1df148-428f-11e5-8ab4-c73967a143d3_story.html