I'm just saying, it's the individuals. I'd be worried if most people in that gathering were displaying controversial stuff. They're not tho.
Should one individual be able to discredit the whole group?
If yes, all the opposing party would need to do to defeat the gathering is send one man carrying a flag with horrible implications to the gathering.
From that hypothetical example, it's obvious (for me) that an individual shout not be able to discredit the whole group.
I wouldn't be able to recognize that flag. As i said before, i need to be convinced that they did recognize it, noticed it and approved it.