Would be interesting to see what generation him and the right wing movements garner the most support from, Gen Z are normally seen as progressive, boomers are close enough to fascism of the world war 2 era and were brought up by the survivors of that era. Maybe gen x? I like to think it isn't my gen (millennial) but a lot have been screwed in terms of economics so maybe that pushed them towards it.
Haven't looked too closely for a while, but my impressions from polling in the US:
Younger Gen Z are split by gender. Younger millennials/older Gen Z are left-wing. Older millennials/Gen X are quite solidly right. Boomers are of course right, and are Trump's base, but actually less now than in 2016.
Some similarities and differences in Europe. The far-right parties (Le Pen, AfD) do best among the young voters... as do the far-left and sometimes the Greens. I would guess, again, gender and race play a role in which young voter goes to which side. Polls show this sharp youth vote polarisation in many European countries - France, the Nordics, sometimes Germany and Italy.
In France, Le Pen is basically being held back by the retirees, who vote for Macron or the traditional right in massive numbers. They give her and the centre-left a few votes, and nothing for Melenchon. She has a comfortable plurality among people under 50. The far-left has limited appeal among people over 30, but there are enough centrists between 30-60 who accept them as a strategic option to keep her out. It seems like the generation that remembers/was directly told about WW2 has a far-right taboo in France.
In UK, when FPTP forced a far-leftist on the ballot (Corbyn), he got a massive age gradient in both his elections. More than any election before or since, he collapsed among retirees, and cleaned up among under-40s. The age group that cost him the 2017 election was the 40-65 group, where he got some votes, but needed more to overcome the (editorialising
) zombies crushing all hope for a future.