Nastiness in supporters is certainly present in Trump supporters also!!!
Being nasty in support of ANY candidate is stupid. All it does is turn people against your candidate. It’s the equivalent of supporting a candidate while working against him/her.
I wonder about the IQ of people who behave nastily in support of their candidate. How unintelligent does a person have to be to not grasp they are harming their own candidate via such tactics?
Human nature is a high hurdle to overcome.