Home owners and old people.
''As in previous years, homeowners were more likely to vote Conservative in the 2019 election. According to Ipsos MORI’s figures, 57% of voters who owned their home outright voted Conservative, as did 43% of people with mortgages. By contrast, 45% of social renters and 46% of private renters voted Labour.
The 2011 Census tells us how many homeowners were in each constituency. At the time, around 64% of UK households owned their home, either outright or with a mortgage. 315 of the Conservatives’ 365 seats (86%) had home ownership levels above this average, compared with 53 of Labour’s 202 seats (26%).''
Housing is probably the biggest issue driving the wedge between young people voting Labour and old people making money on an asset voting tory who artificially keep house prices rising