I don’t agree with this. On the whole i’d say Liverpudlians are quite principled and progressive - notoriously so infact given the city’s ‘managed decline’ under the Tories, the race riots, the dockers and widescale unemployment, the public and media reaction to Hillsborough, etc, etc.
You should go, or at least go before writing it off. Even as a Mancunian i’d consider it the friendliest city in the UK.