And by the way weak governments are good in my book...
That's not a very leftist idea at all. How can a far left government rule without being strong, especially if they are going to nationalise and keep the capitalists in check? I don’t think Corbyn/McDonnell, the unions or the far left would really share your view on that.
Whether or not this is anything more than a brief moment remains to be seen, personally I'm pessimistic about him lasting more than a year or two. I can't see the party bigwigs letting him actually lead them into a general election. But if a very centrist labour was rejected at the last election I fail to see how being even more tory lite is much of a plan. Can you really nick enough tory voters to win?
I don't think it's really down to the party bigwigs. Smith and Blair had a huge job to persuade Labour to become more centrist, but they succeeded and the far left, including Corbyn, was all but marginalised. A career politician, Corbyn stayed on. A career chancer and egoist, Galloway sought different pastures. As much as the Labour far left might have praised Galloway, few followed in his footsteps. This is an important point: Corbyn's approach worked better from within.
This drift to the centre for Labour continued simply because it produced electoral success and this was further accomplished by picking up the votes of more centrist, disgruntled Conservative supporters who could see that by '97 Major had lost his touch and that Hague subsequently wasn't cut out for the job or even the subsequent jobs that followed - if one is to be painfully honest. A long list of poor to inefficient Conservative candidates, especially the ever irritating IDS (who should have and could still be re-branded as IBS) followed and posed little threat to the New Labour juggernaut until it also had run its course and left a void in the political scene. Who capitalises on the discontent with Labour? Certainly not the Greens.
The thing is that Cameron isn't wildly popular in the various Conservative circles, so there is certainly disgruntled Conservative voters looking for something more robust. (Cameron stays if Labour doesn't mount much of a threat.) Now the real question is will that be UKIP or a moderate, centrist Labour party that benefits from those less than enthusiastic with Cameron's running of the Conservatives and the country?
If Corbyn doesn't moderate his views on certain things, Labour loses a large percentage of the disgruntled Conservative vote. They will need to maximise that section of the electorate if they are ever to win the next election.