That would be a simpleton's view of the situation. The current American president and Brexit are effects of the problem to which I alluded, not the causes, although they do contribute to it. White nationalism is most of the problem. I think it was triggered by immigration in Europe. In the US, it was the first black president. Populism found a resurgence on both continents when the global economy collapsed in 2008; and sensing a scarcity of resources, people wanted to close themselves off to the world because their fear overwhelmed their rationality. Finally, liberalism has been, in my opinion, a process of two steps forward and one step backward for centuries. We're in a backward step now, a natural correction. The European refugee situation, the first black American president, the Great Recession, and liberalism's natural ebb and flow created the perfect environment for Nazi emboldenment like the OP detailed. It's allowed far right groups to crawl out of the sewers and advocate for bygone days based on imagined racial superiority and constructed national identity. I have no doubt that forward progress will begin again sometime in the next decade or so, but questions like yours remind me how deep these artificial divisions have become.