Well, it's American-style "liberal": hard neoliberal with some of performative (rather than principled) moral liberalism.
It's definitely not Liberal in the sense of taking a principled stance for people's freedom, as made painfully obvious by what they're doing against anti-Genocide protestors.
I would even say they're more towards the Authoritarian side than the Liberal one.
The Labour Party is just a mainstream party from a system with First Past The Post (where power is pretty much a doupoly) which was captured and the ideology of those who captured it isn't even left of center.
Remember that not that long ago they were purging Leftwingers in that party.
They're Neoliberals so far to the Right that they're actively supporting a foreign ethno-Fascist regime committing a Genocide along ethnic lines now entering a Holocaust phase, and do so using authoritarian measures against the population of their own country, all of this whilst wearing a Labour Party suit.
I lived in Britain for over a decade until a little after the Leave Referendum and kept track of British politics for a while after that, and this surprises me not one bit after the style and nature of the coup against Jeremy Corbyn done by the very people now in Government there.