I don't think it’s fair to label an entire movement based upon the actions of a few individuals. Are some of the signs inflammatory? Certainly. Are the majority of them so? Definitely not. It’s impossible to control what everyone at a rally that big does. Blaming the entire movement for that would be the same as blaming the entire peace movement in the 60’s because a few people decided to set off explosives and kill people.

Did is a word of achievement
Won't is a word of retreat
Might is a word of bereavement
Can't is a word of defeat
Ought is a word of duty
Try is a word of each hour
Will is a word of beauty
Can is a word of power

--Author Unknown