This is nonsense. Inter alia, Outside NI, neither the young, nor the old, gave a flying one about the Good Friday Agreement in 2017.
I cannot even begin with the idea that "pronouns" were the cultural issue in this election. Animal cruelty was, for God's sake.
Among affluent ethnic minorities and social liberals, three words - "citizens of nowhere" - undid 11 years of good work by David Cameron.
Corbyn's line on the IRA held up with causal observers of all ages cos it spoke to cultural story Britain tells itself re: Northern Ireland.
Other than Corbyn and May, most important figures in the election were Kevin Courtney, who turned 2015 Tory parents, particularly mums, red.