This is the same problem that we had in the US. Neoliberalism will always lead to fascism since it breeds the economic hardship that causes fascism or revolt, and the powerful are able to tilt the scale away from revolt towards fascism, which is their preference.

The solution is to take over the more left party by any means necessary since the UK, much like the US, has a FPTP voting system. In the US, the Democrats were consistently able to rig their primaries against the more leftist candidates through a multi-level strategy. Don’t let that happen over there.

Trump is a symptom of a greater problem in the US.