I get the impression you think Labour will follow the Tory lead when you describe them as doing as they please! I think most don't believe that they will be lining their own pockets, those of their local landlord, giving peerages to suspected relatives (whether daughter or sister), appointing...
Sunak's campaign couldn't be going any worse if it had been infiltrated by Alastair Campbell as their campaign manager! Could it be that Sunak is doing a Paqueta and has a large spread bet on the Tories losing??
You're trying to make it sound that, historically, Labour have been very left wing. They've fluctuated between the left and centre. What we can say is that a far left wing labour party, eg Corbyn and Foot, have never won an election and if you're never in power you can never effect change for...
Starmer playing the long game. Use the lie in the 2nd debate which is obviously nearer the election and then proving the lie then will be fresher in the memories of the floating voters!