Austerity Without End
Leaving the Single Market will by itself decimate UK state revenues. The rest of the economic consequences of Brexit will reduce GDP by 3–8% (but probably 10%). Further shrinking the state. Which in turn will further shrink the entire economy because for a couple of generations the (so called) private sector has been dependent on public expenditures. Every penny cut from state expenditure is pounds slashed from the economy.
May and the Brexit gang want this permanent reduction in state expenditure because the hate the fact that the poorest 60% receive and education, receive medical treatment, eat enough to survive. For them Brexit is a dream of savage repression of the majority of society. For everyone else it will be a nightmare.