“You all can defeat Trump next time, but not if you keep mocking us, refusing to listen to us, and cutting us out. It’s Republicans, not Democrats, who will take Trump down.”
I believe we have a similar problem in Germany. Several political decisions where called "alternativlos" (having not alternative option) and everybody opposing them was basically labeled a racist or bad person. For example the bailout of greece or the opening of the borders for all syrian refugees.
I am not arguing for or against one side, but I do believe that there were not fair discussions about the pros and cons of these topics. And this is a big reason why the "alt-right" (or whatever) is on the rise in Europe as well.
So give people room to discuss all of these topics, hear their voices and truly try to understand why they have a different opinion. This way we won't have another Trump and we won't have far-right elections anymore.