"May has been forced to lurch rightwards,..."
Of course you are joking, eh Gromit?
It will come as no surprise that I lean, shall we say, slightly to the Right of the centre. If Mrs May has shown a tendency to lurch in that direction I must have missed it. She is the most un-Conservative of Conservative leaders I think I have known. That even includes the late (and unlamented) David Cameron. Even in the Brexit "negotiations" (which is not a Left/Right issue anyway) she has shown no Right Wing tendencies at all.
"Consensus politics" is a farce. The idea of politics and elections is to give people a clear choice. These days, of course, nobody must be disappointed (witness the ridiculous furore since the referendum and the continued attempts to water down of nullify the outcome). Shifting everything to the middle gives voters no choice at all and everybody ends up getting what nobody wants. Recent politicians are so petrified of alienating one side or the other so they move to the middle to avoid alienating anybody. The result is they alienate almost everybody and the electorate choose the mob they least dislike. Hardly a ringing endorsement.
Conservative supporters have not had a Conservative Party they could truly support for many years. At least Labour voters now have and I envy them for it. Mr Corbyn represents what the proper Labour Party (last seen in 1996) stands for.