If it was as simple as getting rid of Corbyn, Labour would be a shoo in at the next election.
But OF COURSE it isn't that simple. Next time, there will be a HUGE push and focus with all the weight of big money, power, influence behind another 'keep Labour out and Tory in'. Insults, feigned problems within the LP, problems with the leader. As if the CP doesn't have the very same. BUT they have the weight of wealth, power and influence behind them.
It's just a game to the elite. Do whatever you have to, to get in. I don't know how you fight that. Not fairly, that is for sure.