Though I don't agree with donaldtrumpshair AT ALL and completely understand PP's reaction to their comment I do also believe we need to think very seriously about how we react to people like this and their comments.
I say this with as much respect as possible to you donaldtrumpshair so please don't take offence to this but IMO people with views like that are uneducated. They do not have the skills to realise that not everything we read or see is true for example.
I really think we need to start responding with sympathy to comments like this and trying to educate people by attempting to calmly explain why saying hateful and silly things like that is very wrong and does not make you look good.
Maybe little by little that would help the horrible attitudes that more and more people seem to be holding? I don't know, I'm probably wrong, but I have to believe we can make a difference in that way or I just feel too helpless.
I hope I haven't offended anyone.