There has been a general ideological shift in the western world among social classes. The white working class that use to support left wing parties now votes right, and the white middle class that use to vote right now votes center left.
The voting coalitions on the right now consist of the white working class, and a large percentage of the upper classes, and the voting coalitions on the left largely consist of professional middle class whites and minorities, generally speaking.
In started in Europe with the decline of center left parties, and in countries like France, and the North and midlands of the UK, which use to be the working class manufacturing hubs in the UK, but now have areas of large unemployment, the British rust belt.
It spread to the United States and was tapped by Trump by capturing the American rust belt of the mid west, and resentment towards changing racial demographics in Florida.
I use to have the statistics on the % if white working class males that voted for Trump and it was insane, but I can't locate them. Here are some links below on Western Europe.
https://www.pewresearch.org/fact-tan...estern-europe/
https://www.hopenothate.org.uk/resea...ectorate-left/
https://www.independent.co.uk/news/u...-a9249936.html
https://www.dailymail.co.uk/news/art...e-van-man.html
Hence Trump's enlarged core.